Number System Questions: Solved 444 Number System Questions and answers section with explanation for various online exam preparation, various interviews, Aptitude Category online test. Category Questions section with detailed description, explanation will help you to master the topic.
1. When a number is subtracted from the number 8,12 and 20, the remainders are in continued proportion, Find the number ? SHOW ANSWER
Correct Ans:4 Explanation: Explanation :8-x / 12 –x = 12-x /20 –x(8-x)(20-x) = (12 – x)(12 –x ) 160 – 8x – 20x + x2 = 144 – 12x – 12x + x2 4x = 16x = 4
2. The sum of the digits of a 2-digit number is 11. If we add 45 to the number, the new number obtained is a number formed by interchange of the digits. What is the number? SHOW ANSWER
Correct Ans:x = 3 and y = 8 Explanation: Let the number is 10x + y Given: x + y = 11 ----------(i) According to the question, 10x + y + 45 = 10y + x ⇒ x – y = -5 -----------(ii) From eq. (i) and (ii) , we get x = 3 and y = 8
3. Among three numbers, the first is twice the second and thrice the third, if the average of three numbers is 517, then what is the difference between the first and the third number? SHOW ANSWER
Correct Ans:564 Explanation: Let the first number be 6x then second and third number be 3x and 2x respectively.Given: average of these numbers = 517Then, their sum = 517 * 3= 1551⇒ 6x + 3x + 2x = 1551⇒11x = 1551⇒ x = 141Now, the difference between first and third number = 6x – 2x= 4x= 4 * 141 = 564
4. If the fractions 1/2, 2/3, 5/9, 6/13, and 7/9 are arranged in ascending order of their values, which one will be the fourth? SHOW ANSWER
Correct Ans:(2/3) Explanation: Given fractions are 1/2, 2/3, 5/9, 6/13, and 7/9L.C.M of their denominators ie., 2, 3, 9, 13, 9 = 234Thus, given fractions become: 1/2 = 117/2342/3 = (2 * 78)/234 = 156/2345/9 = (5 * 26)/234 = 130/2346/13 = (6 * 18)/234 = 108/2347/9 = (7 * 26)/234 = 182/234---> On arranging the numerators in ascending order, we get108, 117, 130, 156, 182 Therefore Ascending order of the given fractions is: ---> Here, the fourth one is 2/3.
5. The product of two natural numbers is 9222. If they differ by 19 then find out the sum of the number. SHOW ANSWER
Correct Ans:193 Explanation: Let 'x' and 'y' be the two numbers where (x > y).Given that, Product of x and y = 9222---> x * y = 9222 ---> eqn (1)Given that, Difference of x and y = 19--->. x - y = 19---> x = 19 + y ---> eqn (2)Substitute this 'x' value in eqn (1), we get---> (19 + y) * y = 9222 ---> 19y + y2 = 9222 ---> y2 + 19y - 9222 = 0 By using the formula, y = {-b ± √[b2 - 4ac]} / 2aWe can find the value of y,Where, b = +19a = 1c = -9222 ---> y = {-19 ± √[(19)2 - 4 * 1 * (-9222)]} / 2 * 1 = {-19 ± √[361 + 36888]} / 2= {-19 ± √[37249]} / 2= {-19 ± 193} / 2= {-19 + 193} / 2; {-19 - 193} / 2= {174/2}; {-212/2}= 87; -106'y' can't be negative number (i.e, -106) as 'y' is a natural number.Therefore, y = 87 Hence, x = 19 + y (---> from eqn (2))--> x = 19 + 87--> x = 106 Therefore, sum of the numbers = x + y = 106 + 87 = 193
6. What is the sum of all natural numbers between 100 and 200 which are multiples of 3? SHOW ANSWER
Correct Ans:4950 Explanation: Multiples of 3 between 100 and 200 are 102, 105, 108,… ,198.Here, the first term = 102last term = 198Let the number of Multiples of 3 between 100 and 200 = n W.K.T: Arithmetic Progression Formula: Where, an = last term = 198 a1 = first term = 102d = common difference = 105 - 102 = 3---> 198 = 102 + (n - 1) * 3---> 198 - 102 = (n - 1) * 3---> 96 = (n - 1) * 3---> (n - 1) = 96/3 = 32---> n = 32 + 1 ---> n = 33 Formula: Thus, using the above formula, Sum of all natural numbers between 100 and 200 which are multiples of 3 = (33/2) * (102 + 198) = (33/2) * 300= 33 * 150= 4950
7. If the sum of 1st 11 terms of an A.P is equal to sum of 1st 19 terms of that A.P then, Find the sum of 1st 30 terms? SHOW ANSWER
Correct Ans:0 Explanation: W.K.T: Sum of first n terms of an Arithmetic Progression (A.P) is: ---> 2a + 29d = 0 ---> eqn (1) Then, Sum of 1st 30 terms of an A.P = (30/2)[2a + (30 - 1)d]= (15)[2a + 29d]= (15)[0] ----> [Since from eqn (1), 2a + 29d = 0]= 0Hence, Sum of 1st 30 terms of an A.P = 0
8. A number when divided by the sum of 555 and 445 gives two times their difference as quotient and 30 as the remainder. The number is _________. SHOW ANSWER
Correct Ans:220030 Explanation: Let the required number be 'N' which is the 'dividend'.Given, Divisor = sum of 555 and 445 = 555 + 445 = 1000Quotient = 2 * (555 - 445) = 2 * 110 = 220Remainder = 30 W.K.T: Dividend = Divisor * Quotient + Remainder ---> Dividend ie., Required Number = 1000 * 220 + 30---> Required Number = 220000‬ + 30---> Required Number = 220030
9. If the numbers ∛9, ∜20, (25)(1/6) are arranged in ascending order, then the right arrangement is ________. SHOW ANSWER
Correct Ans:(25)(1/6) < ∛9 < ∜20 Explanation: Given numbers are (9)(1/3), (20)(1/4), (25)(1/6) L.C.M of 3, 4, and 6 = 12 Now, (9)(12/3), (20)(12/4), (25)(12/6) ----> (9)4, (20)3, (25)2 ----> (9)4 = 6561, ----> (20)3 = 8000, ----> (25)2 = 625 Therefore, right arrangement in ascending order is: (25)(1/6) < ∛9 < ∜20
10. The unit digit in 43 * 69 * 551 * 9242 is SHOW ANSWER
Correct Ans:4 Explanation: If we write all the given numbers in a form (10a + b), b will turn out to be the unit's digit here.So when we multiply all the given numbers, the unit's digit in the product will be nothing but the product of all unit's digits, irrespective of what the other digits in the number are.From the given expression,---> unit digit of 43 * unit digit of 69 ---> 3 * 9 = 27 ---> here, unit digit = 77 * unit digit of 551 = 7 * 1 = 7 ---> here, unit digit =77 * unit digit of 9242 = 7 * 2 = 14 ---> here, unit digit = 4 Therefore, Digit at unit's place of the given expression "43 * 69 * 551 * 9242" = 4
11. You purchased two pieces of cloth measuring 1.2 m and 1.3 m each at Rs. 330 and Rs. 270 per meter respectively and gave Rs. 1000 at the payment counter. How much cash will you get back? SHOW ANSWER
Correct Ans:Rs. 253 Explanation: Total cost of the two pieces of cloth = (1.2 * 330) + (1.3 * 270) = Rs. 747 Given that he paid an amount of Rs. 1000 at the counter Amount he get back = 1000 - 747 = Rs. 253
12. Three numbers which are co-prime to each other are such that the product of the first two is 551 and that of the last two is 1073. The sum of the three numbers is: SHOW ANSWER
Correct Ans:85 Explanation: Since the three numbers are co-prime, they contain only 1 as the common factor.Also, the given two products have the middle number in common. So, middle number = H.C.F. of 551 and 1073 = 29 Given product of the first two numbers = 551--> First number = 551/29 = 19 Given product of the last two numbers = 1073---> Third number = 1073/29 = 37 Thus, Required sum = (19 + 29 + 37) = 85--> Sum of the three numbers = 85.
13. The least number which must be added-to 1728 to make it a perfect square is SHOW ANSWER
Correct Ans:36 Explanation: The least number which must be added-to 1728 to make it a perfect square isReference: ----> 1728 + 36 = 1764 = (42)2 ----> Hence 36 is to be added with 1728 to make it perfect square.Hence the answer is : 36
14. Find the total number of factors of 15120 SHOW ANSWER
Correct Ans:80 Explanation: Find the total number of factors of 15120If a composite no. N has been written in the form of -----> N = ap ,b q ,c r ,d s,.......... Then the no. of total division or factors of-----> N = (p+1)(q+1)(r+1)(s+1),.........Hence,-----> 15120 = 24 * 34 * 5 1 * 7 1 total no of factors, -----> = (4+1) (3+1) (1+1) (1+1)-----> = 80Hence the answer is : 80
15. Find the unit digit of the product of all the prime numbers between 1 and (17) 17 SHOW ANSWER
Correct Ans:0 Explanation: Find the unit digit of the product of all the prime numbers between 1 and (17) 17 :Reference:The set of prime numbers S = { 2,3,5,7,11,13,.....}Since there is one 5 and one 2 present in this series. If we multiply there two numbers we get ‘0’ as the unit digit. Hence the unit digit of given expression is 0.
16. If (a*b) = 6a - 4b + 3ab, then ((6 * 3) + (4 * 3)) is equals to. SHOW ANSWER
Correct Ans:126 Explanation: If (a*b) = 6a - 4b + 3ab, then ((6 * 3) + (4 * 3)) is equals to.Reference:----> (6 * 6) - (4 * 3) + (3 * 6 * 3 ) + (4 * 6) - (4 *3) + (3* 4* 3)----> = 36 -12 + 54 +24 - 12 + 36----> = 126 Hence the answer is : 126
17. Which of the following cannot be the number of zeroes at the end of any factorial? SHOW ANSWER
Correct Ans:5 Explanation: Which of the following cannot be the number of zeroes at the end of any factorial:Reference:----> We know that the number of zeroes at the end depends on the pair of (2 * 5) . We know that number of zeroes in 5! Is 1.----> (5! to 9!) = 1----> (10! to 14!) = 2----> (15! to 19! ) = 3----> (20! to 24!) = 4----> (25! to 29!) = 6 ----> Here number of zeroes between 25! to 29! is 6 because 25 = 5 2 So, 5 cannot be the number of zeroes at the end of any factorial value. Hence the answer is : 5
18. If p is prime number, then which of the following may also be a prime number? SHOW ANSWER
Correct Ans:(p -2) Explanation: If p is prime number, then which of the following may also be a prime number:Reference:---> None of the prime number other than 2 is divisible by 2 and we know that 1 is not a prime. ---> p2can be factorized as (p* p) which makes it a composite number. ---> 3p is also a composite number.---> Now, for p = 5,7 and 13 we have p -2 = 3,5 and 11 respectively, which are prime numbers.Hence the answer is : (p -2)
19. N is the largest 3-digit number, which when divided by 3, 4 and 6 leaves the remainder 1, 2 and 4 respectively. What is the remainder when N is divided by 7? SHOW ANSWER
Correct Ans:0 Explanation: N is the largest 3-digit number, which when divided by 3, 4 and 6 leaves the remainder 1, 2 and 4 respectively. What is the remainder when N is divided by 7:Reference :Since,(3 -1) = (4 - 2) = (6 - 4) = 2Least number which when divided by 3, 4 and 6 leaves 1, 2 and 4 as remainders is----> LCM(3,4,6)----> = 12-2----> = 10Largest three digits multiple of 12 which is under 1000 when we add 10 to it----> (1000/12) = 4 (remainder)----> 1000 - 1 = 996 (multiple of 12)----> 996 - 12 = 984 (multiple of 12)Required number = 984+10 = 994Remainder = ((994)/7) = 0 Hence the answer is : 0
20. What is the greatest number that will divide 1204, 3664 and 5904 leaving the same remainder? SHOW ANSWER
Correct Ans:20 Explanation: What is the greatest number that will divide 1204, 3664 and 5904 leaving the same remainder:Reference :Required number,----> HCF [(3664 - 1024),(5904 - 3664),(5904 - 1204)]----> HCF(2466,2240,4700)----> 20 Hence the answer is : 20 Are you seeking for good platform for practicing Number System questions in online. This is the right place. The time you spent in Fresherslive will be the most beneficial one for you. This page provides important questions on Number System along with correct answers and clear explanation, which will be very useful for various Interviews, Competitive examinations and Entrance tests. Here, Most of the Number System questions are framed with Latest concepts, so that you may get updated through these Number System Online tests. Number System Online Test questions are granted from basic level to complex level. Number System questions are delivered with accurate answer. For solving each and every question, very lucid explanations are provided with diagrams wherever necessary. Practice in advance of similar questions on Number System may improve your performance in the real Exams and Interview. Time Management for answering the Number System questions quickly is foremost important for success in Competitive Exams and Placement Interviews. Through Fresherslive Number System questions and answers, you can acquire all the essential idea to solve any difficult questions on Number System in short time and also in short cut method. Winners are those who can use the simplest method for solving a question. So that they have enough time for solving all the questions in examination, correctly without any tense. Fresherslive provides most simplest methods to answer any tough questions. Practise through Fresherslive test series to ensure success in all competitive exams, entrance exams and placement tests. Most of the job seekers finding it hard to clear Number System test or get stuck on any particular question, our Number System test sections will help you to success in Exams as well as Interviews. To acquire clear understanding of Number System, exercise these advanced Number System questions with answers. You're Welcome to use the Fresherslive Online Test at any time you want. Start your beginning, of anything you want by using our sample Number System Online Test and create yourself a successful one. Fresherslive provides you a new opportunity to improve yourself. Take it and make use of it to the fullest. GOODLUCK for Your Bright Future. Page 2Number System Questions: Solved 444 Number System Questions and answers section with explanation for various online exam preparation, various interviews, Aptitude Category online test. Category Questions section with detailed description, explanation will help you to master the topic.
21. A number 18567332145x is divisible by 8. What can be the minimum value of x? SHOW ANSWER
Correct Ans:6 Explanation: A number 18567332145x is divisible by 8. What can be the minimum value of xReference :For a number to be divisible by 8; its last 3 digits should be divisible by 8-----> So (45x) is divisible by 8------> Thus x = 6 is the correct answer Hence the correct answer is x = 6
22. A fraction becomes (1/3) when 1 is subtracted from both the numerator and the denominator. The same fraction becomes (½) when 1 is added to both numerator and the denominator the sum of numerator and denominator of the fraction is"“ SHOW ANSWER
Correct Ans:10 Explanation: Let fraction be (x/y)-----> Then,((x-1)/(y-1)) = (1/3) -----> Or, 3x – 3 = y – 1 -----> 3x – y = 2 …………..(i) -----> Again, ((x+1)/(y+1)) = (1/2)-----> 2x + 2 = y + 1 -----> 2x – y = –1 ………..(ii) -----> On solving eqn (i) and (ii) -----> x = 3, y = 7 -----> Sum of numerator and denominator of the fraction -----> = 3 + 7 = 10. Hence the answer is : 10
23. If the sum of three odd natural numbers is 357, each of the number is divisible by 7. which one of the following is the largest number? SHOW ANSWER
Correct Ans:133 Explanation: If the sum of three odd natural numbers is 357, each of the number is divisible by 7. which one of the following is the largest number Reference : Let the number be (x, x+14,x+28) -----> x+x+14+x+28 = 357 -----> 3x + 42 = 357 -----> 3x = 315 -----> x =105 -----> Required, -----> x +28 = 105 +28 = 133 Hence the answer is : 133
24. The arithmetic mean of two numbers is 30 and their geometric mean is 24. What is the value of larger number? SHOW ANSWER
Correct Ans:48 Explanation: The arithmetic mean of two numbers is 30 and their geometric mean is 24. What is the value of larger numberReference :Let the numbers to be ‘a’ & ‘b’.Arithmetic mean of the numbers = ((a+b)/2)Geometric mean of the numbers = √abAccording to the question:----> [(a+b)/2] = 30----> (a+b) = 60----> And----> √(ab) = 24----> ab = 576Solving both equations:----> a(60-a) = 576 ----> 60a – a2 = 576 ----> a2 – 60a + 576 = 0 ----> a2 – 48a - 12a + 576 = 0----> a(a-48)-12(a-48) = 0----> (a-12)(a-48) = 0----> a = 12, 48 Hence larger number is = 48
25. The greatest among the numbers 3√2, 3√7, 6√5, 2√20 is SHOW ANSWER
Correct Ans:6√5 Explanation: WKT, √2 = 1.4 √7 = 2.6 √5 = 2.2 3√2 = 3 x 1.4 = 4.2 3√7 = 3x 2.6 = 7.8 6√5 = 6 x 2.2 = 13.2 2√20 = 2 x 2√5 = 4√5 = 4 x 2.2 = 8.8 Hence, 6√5 is greatest.
26. What is the least value of K so that the number 6735K1 is divisible by 9? SHOW ANSWER
Correct Ans:5 Explanation: Given: 6735K1 6 + 7 + 3 + 5 + K + 1 = 22 + K Here, the least number K should be greater than 22 and divisible by 9. Therefore, the least number is27. 27 = 22 + K K = 5
27. A 4-digit number is formed by repeating a 2-digit number such as 2525, 3232, etc., Any number of this form is always exactly divisible by SHOW ANSWER
Correct Ans:Smallest 3-digit prime number Explanation: Let the unit digit be x and ten's digit be y.Number = 1000y + 100x + 10y + x= 1010y + 101x= 101(10y + x) Hence, this number is divisible by 101, which is the smallest three-digit prime number.
28. In a zoo there are rabbits and pigeons. If their heads are counted, they are 90 while their legs are 224. Find the number of pigeons in the zoo? SHOW ANSWER
Correct Ans:68 Explanation: Let number of pigeons be 'X'.Number of rabbits and pigeons = 90Therefore, number of rabbits = 90 - XAccording to the question,2X + 4(90 - X) = 2242X + 360 - 4X = 224360 - 224 = 2X136 = 2XX = 68 Hence, there are 68 pigeons in the zoo.
29. Five-eight of three-tenth of four-ninth of a number is 60. What is the number? SHOW ANSWER
Correct Ans:720 Explanation: Let the number be Y.(5/8)x(3/10)x(4/9)x Y = 60Y = 60 x (8/5) x (10/3) x (9/4) Y = 720
30. What is the sum of first 12 terms of an arithmetic progression, if the first term is -19 and the last term is 36? SHOW ANSWER
Correct Ans:102 Explanation: Given: First term, a = -19; Last term, an = 36; n =12 WKT, Required sum = (n/2)[a + an] = (12/2)[(-19 + 36)]= 102
31. The sum of three consecutive odd numbers is 20 more than the smallest number. What is the middle number? SHOW ANSWER
Correct Ans:9 Explanation: Let the three consecutive odd numbers be x, x + 2, x + 4.As per the question,x + x + 2 + x + 4 = x + 203x + 6 = x + 203x - x = 20 - 62x = 14x = 7 Therefore, three odd numbers are 7, 9, 13 and the middle number is 9.
32. The 4th and 7th term of an arithmetic progression are 11 and -4, respectively. What is the 15th term? SHOW ANSWER
Correct Ans:-44 Explanation: WKT, aâ‚™ = a + (n - 1)dwhere a - first term; d - differenceGiven 4th term of AP is 11,a + (4 - 1)d = 11a + 3d = 11 .....(1)Also given that 7th term of AP is -4,a + (7 - 1)d = -4a + 6d = -4 .....(2)On solving (1) and (2),a = 26; d = -5Therefore, 15th term = a + (15 - 1)d= 26 + 14(-5)= 26 - 70 = -44
33. What is the 507th term of the sequence 1, -1, 2, -2, 1, -1, 2, -2, 1,...........? SHOW ANSWER
Correct Ans:2 Explanation: Given sequence: 1, -1, 2, -2, 1, -1, 2, -2, 1,....... From the sequence it is clear that repetition take place for each set of four terms. Hence, remainder of 507/4 = 3. In the given sequence, we know that four terms are repeated again and again. In that 3rd term is 2. Therefore, 507th term is 2.
34. What number must be subtracted from both the numerator and the denominator of the fraction 27/35 so that it becomes 2/3? SHOW ANSWER
Correct Ans:11 Explanation: Let the number be 'X'.(27 - X)/(35 - X) = 2/33(27 - X) = 2(35 - X)81 - 3X = 70 - 2X81 - 70 = 3X - 2X X = 11
35. Sum of a fraction and thrice its reciprocal is 31/6. What is the fraction? SHOW ANSWER
Correct Ans:9/2 Explanation: Let the fraction be x/1. Accoroding to the question, (x/1) + 3(1/x) = 31/6 (x2) + 3)/x = 31/6 6x2 + 18 = 31x 6x2 -31x + 81 = 0 6x2 -4x - 27x + 18 = 0 2x(3x - 2) - 9(3x -2) = 0 (2x - 9) (3x - 2) = 0 x = 9/2, 2/3 From the options, 9/2 is the correct answer.
36. Which one of the following is the minimum value of the sum of two integers whose product is 24? SHOW ANSWER
Correct Ans:10 Explanation: Let the two integers be 'x' and 'y'.Given: Product of two integers, xy = 24The possible integers are (1, 24) or (2, 12) or (3, 8) or (4, 6)Therefore, mininmum value of (x + y) = 4 + 6 = 10.
37. A man plants 5184 orange trees in his garden and arrange them,so that there are as many rows as there are orange trees in a row. How many rows are there in the garden? SHOW ANSWER
Correct Ans:72 Explanation: Given, number of rows and columns of trees are same.So, let the number of rows and columns be 'Y'.As per the question,Y x Y = 5184 Y2 = 5184 Y = 72 rows.
38. In a division problem, the divisor is 4 times the quotient and 3 times the remainder. If remainder is 4, then the dividend is SHOW ANSWER
Correct Ans:40 Explanation: Given: Remainder = 4As per the question,Divisor = 3 x Remainder = 3 x 4 = 12Also, Divisor = 4 x Quotient12 = 4 x QuotientQuotient = 12/4Quotient = 3WKT, Dividend = Quotient x Divisor + RemainderDividend = 3 x 12 + 4 Dividend = 40.
39. The first term of an Arithmetic Progression is 22 and the last term is 11. If the sum is 66, the number of terms in the sequences are SHOW ANSWER
Correct Ans:12 Explanation: Given: s - 66, a - 22, l - 11 The sum of Arithmetic Progression is given by s = (n/2)(a + l) 66 = (n/2)(22 - 11) 66 = (n/2)(11) n = (66 x 2)/11 n = 12
40. Find the number lying between 900 and 1000 which when divided by 38 and 57 leaves in each case a remainder 23. SHOW ANSWER
Correct Ans:935 Explanation: Here, LCM of 38 and 57 is 114.Where 114 is divisible by both 38 and 57.Therefore, the required number is multiple of 114.Number divisible by 114 between 900 and 1000 is 912. Required number = 912 + 23 = 935. Are you seeking for good platform for practicing Number System questions in online. This is the right place. The time you spent in Fresherslive will be the most beneficial one for you. This page provides important questions on Number System along with correct answers and clear explanation, which will be very useful for various Interviews, Competitive examinations and Entrance tests. Here, Most of the Number System questions are framed with Latest concepts, so that you may get updated through these Number System Online tests. Number System Online Test questions are granted from basic level to complex level. Number System questions are delivered with accurate answer. For solving each and every question, very lucid explanations are provided with diagrams wherever necessary. Practice in advance of similar questions on Number System may improve your performance in the real Exams and Interview. Time Management for answering the Number System questions quickly is foremost important for success in Competitive Exams and Placement Interviews. Through Fresherslive Number System questions and answers, you can acquire all the essential idea to solve any difficult questions on Number System in short time and also in short cut method. Winners are those who can use the simplest method for solving a question. So that they have enough time for solving all the questions in examination, correctly without any tense. Fresherslive provides most simplest methods to answer any tough questions. Practise through Fresherslive test series to ensure success in all competitive exams, entrance exams and placement tests. Most of the job seekers finding it hard to clear Number System test or get stuck on any particular question, our Number System test sections will help you to success in Exams as well as Interviews. To acquire clear understanding of Number System, exercise these advanced Number System questions with answers. You're Welcome to use the Fresherslive Online Test at any time you want. Start your beginning, of anything you want by using our sample Number System Online Test and create yourself a successful one. Fresherslive provides you a new opportunity to improve yourself. Take it and make use of it to the fullest. GOODLUCK for Your Bright Future. Page 3Number System Questions: Solved 444 Number System Questions and answers section with explanation for various online exam preparation, various interviews, Aptitude Category online test. Category Questions section with detailed description, explanation will help you to master the topic.
41. A student was asked to divide a number by 6 and add 12 to the quotient. He, however, first added 12 to the number and the divided it by 6, getting 112 as the answer. The correct answer should have been SHOW ANSWER
Correct Ans:122 Explanation: Let the number be X.When first added 12 to the number and then divide by 6, the answer is 112.(X + 12)/6 = 112(X + 12) = 672X = 672 - 12X = 660Therefore, when number is first divided by 6 and added by 12 we get,= (660/6) + 12= 110 + 12 = 122.
42. A number when divided by 136, leaves remainder 36. If the same number is divided by 17, the remainder will be SHOW ANSWER
Correct Ans:2 Explanation: If the first divisor be a multiple of the second divisor, then required number = Remainder obtained by dividing the first remainder by the second divisor.Since, 17 is a factor of 136. Therefore, 36 divided by 17 is 2.
43. The smallest number in the set of five consecutive even numbers is 1 more than the largest number in the set of six consecutive odd numbers. What is the difference between the square of the second largest even number and the square of the second smallest odd number, if the sum of the smallest odd number and second smallest even number is 75? SHOW ANSWER
Correct Ans:1215 Explanation: Let us take five consecutive even numbers x, x+2, x+4, x+6, x+8 and six consecutive odd numbers y, y +4, y +6, y +8, y+10Given, X-y=ll—(l) Simplify the above equation (I) and (2), we get x=42 Required difference = (482-332)=1215
44. If 3 is added to the numerator while 1 is subtracted to the denominator ratio becomes 5 : 4 while if one is added to the denominator and 5 is subtracted from the numerator the ratio becomes 2 : 3. What is the original fraction? SHOW ANSWER
Correct Ans:17/17 Explanation: Assume the fraction = a/b Condition 1: 3 is added to the numerator while 1 is subtracted to the denominator ratio becomes 5 : 4 (a+3)/(b-1) = 5/4 4a - 5b = -17 Condition 2: 1 is added to the denominator and 5 is subtracted from the numerator the ratio becomes 2 : 3 (a+1)/(b-5) = 2/3 3a - 2b = 17 solving both the equation a = b = 17 Fraction = 17/17
45. 1/10 of a rod is coloured red, 1/20 orange, 1/30 yellow, 1/40 green, 1/50 blue, 1/60 black and the rest is violet. If the length of the violet portion of the rod is 12.08 m, then the length of the rod is __________. SHOW ANSWER
Correct Ans:16 m Explanation: Assume the total parts as 1 Other colours + Violet = 1 1 - (1/10 + 1/20 + 1/30 + 1/40 + 1/50 + 1/60) = Violet 1 - (49/200) = Violet 151/200 parts is Violet It is given that the length of the violet portion of the rod is 12.08 m Let the length of the rod be L, Therefore, 151 * L/200 = 12.08 L = 200 * 12.08/151 = 16 m Length of the rod = 16 m
46. A fraction having denominator 30 and lying between 5/8 and 7/11 is ________. SHOW ANSWER
Correct Ans:19/30 Explanation: Now, when the 5/8 is simplified we get, 5/8= 0.625 (approximately 0.63) Similarly, 7/11 = 0.63 Now considering the options, 21/30 = 0.7 20/30 = 0.67 19/30 = 0.63 18/30 = 0.6 So, a fraction that lies between 5/8 and 7/11 is 19/30
47. A fraction becomes 1/3, when 1 is subtracted from both the numerator and the denominator. The same fraction becomes 1/2, when 1 is added to both the numerator and the denominator. The sum of numerator and denominator of the fraction is __________. SHOW ANSWER
Correct Ans:10 Explanation: Let the original fraction be x/y It is given that, (x-1)/(y-1)=1/3 = 3x – 3 = y – 1 = 3x – y = 2 ----------(1) It is also given that, (x+1)/(y+1)=1/2 = 2x + 2 = y + 1 = 2x – y = -1 ----------(2) On subtracting equation (2) from equation (1), we get (3x – y) – (2x – y) = 2 – (-1) = 3x – 2x = 3 = x = 3 Replacing the value of x in equation (1), we get 3x – y = z = 9 – y = 2 y = 9 – 2 = 7 ∴ Sum of numerator and denominator = x + y = 7 + 3 = 10
48. When two numbers are respectively divided by 33, the remainders are 21 and 28 respectively. If the sum of the two numbers is divided by 33, the remainder will be? SHOW ANSWER
Correct Ans:16 Explanation: The numbers will be in the form of 1st number = 33a + 21 2nd number = 33b + 28 Sum of two numbers = 33a + 21 + 33b + 28 = 33(a + b) + 49 So, irrespective of value a and b, 33(a + b) will always be divisible by 33. So the remaining 49 is left. When 49 is divided by 33, we get 16 as remainder. Therefore, sum of two numbers divided by 33, we get 16 as a remainder.
49. (12 + 22 + 32+ ………… + 102) is equal to how much? SHOW ANSWER
Correct Ans:385 Explanation: 12 + 22 + 32 +...+ n2 = [n*(n+1)*(2n+1)]/6 Here, n =10 = [10*(10+1)*(2(10)+1)]/6 = [10*11*21]/6 = 2310/6 = 385.
50. If in a three-digit number the last two digits places are interchanged, a new number is formed which is greater than the original number by 45. What is the difference between the last two digits of that number? SHOW ANSWER
Correct Ans:5 Explanation: Let the three digit number, xyz = 100x + 10y + z When position of second and third digit interchanged, xzy = 100x + 10z + y According to the question, xyz - xzy = 45 (100x + 10y + z) - (100x + 10z + y) = 45 100x + 10y + z - 100x - 10z - y = 45 9y - 9z = 45y - z = 5 Therefore, difference between last two digit of that number is 5.
51. If 1/6 th of wall is painted blue, 1/3rd is painted yellow and remaining 9m is painted white, what is the length of the wall? SHOW ANSWER
Correct Ans:18m Explanation: Given: 1/6 th part painted in blue and 1/3 rd part painted in yellow.Remaining part painted in white = 9mRemaining part of the wall = 1 - (1/6 + 1/3)= 1- [(1+2)/6]= 1 - (3/6)= 1 - 1/2= 1/2Therefore, remaining 1/2 part painted in white which is 9m. So, Length of the wall = 9 + 9 = 18m.
52. What is the sum of all natural numbers between 100 and 400 which are divisible by 13? SHOW ANSWER
Correct Ans:5681 Explanation: The first number divisible by 13 between 100 and 400 = 104The last number divisible by 13 between 100 and 400 = 390WKT, nth term = a + (n -1 )dWhere, a = first term, d - common differenceHere, nth term = 390; a = 104; d =13390 = 104 + (n - 1)13(390 - 104)/13 = n - 1286/13 = n - 122 = n - 1 n = 23
53. What is the unit digit of the sum of first 131 whole numbers? SHOW ANSWER
Correct Ans:5 Explanation: Given: Sum of first 130 numbers= 1 + 2 + 3 + ....... + 130 WKT, 1 + 2 + 3 + ......+ n = n(n + 1)/2 Here, n = 130 The sum of first 130 numbers = 130(130 + 1)/2 = 130(131)/2 = 8515Therefore, unit digit of the sum of first 131 whole numbers is 5.
54. Find three consecutive numbers such that twice the first, three times the second and four times the third together make 191. SHOW ANSWER
Correct Ans:20, 21, 22 Explanation: Let x, x + 1, x + 2 are three consecutive numbers. Given that 2x + 3(x + 1) + 4(x + 2) = 1912x + 3x + 3 + 4x + 8 = 1919x = 191 - 119x = 180x = 20Therefore, three consecutive numbers = 20, (20 + 1), (20 + 2) = 20,21, 22.
55. The sum of two numbers is 150. If one fourth of first number is 5 more than the one sixth part of the other number, find the smaller number. SHOW ANSWER
Correct Ans:72 Explanation: Let the first number be x. Therefore, second number be (150 - x). According to the question, 1/4 th of first number = 5 more than 1/6 th of second number x/4 = [(150 - x)/6] + 5 x/4 = (150 - x + 30)/6 x/4 = (180 - x)/6 6x = 720 - 4x 6x + 4x = 720 10x = 720 x = 72 Second number = 150 - 72 = 78 Therefore, smallest number is 72.
56. A number when divided by 91 gives remainder 17. When the same number is divided by 13, the remainder will be: SHOW ANSWER
Correct Ans:4 Explanation: X is a number Given that, When X is divided by 91 gives remainder 17 So, X = 91 + 17 = 108 108 divided by 91 leaves 17 as remainder 108 / 13 = 4 ∴ The remainder is 4
57. Which of the numbers given below is not a square number? SHOW ANSWER
Correct Ans:2525 Explanation: 1225 = 35*352025 = 45*454225 = 65*65 Here, 2525 is not the square number.
58. What is the sum of the first 12 terms of an arithmetic progession, if the first term is 3 and the last term is 47? SHOW ANSWER
Correct Ans:300 Explanation: Given: a = 3, an = 47 Therefore, sum of first 12 terms is 300.
59. The second lowest number of five consecutive odd number series is four more than the 5/12th of the third highest number of a five consecutive even number series. If the average of five consecutive even number series is 60, then find the difference between the highest number of both the series? SHOW ANSWER
Correct Ans:29 Explanation: Let five consecutive even number series = a, (a+2), (a+4), (a+6), (a+8) Let five consecutive odd number series = b, (b+2), (b+4), (b+6), (b+8) Given, average of five consecutive even number series = 60 [a + (a+2) + (a+4) + (a+6) + (a+8)]/5 = 60 5a + 20 = 300 a = 56 Third highest number of even number series = (a+4) = 56 + 4 = 60 Second lowest number of odd number series = Four more than the 5/12th of the third highest number of even number series = [(5/12)*60] + 4 = 29 Highest number of even number series = (a+8) = 56 + 8 = 64 Highest number of odd number series = (b+8) = (second lowest -2) + 8 = (29 - 2) + 8 = 35 Required difference = 64 - 35 = 29
60. If the arithmetic mean of 3a and 4b is greater than 50, and a is twice of b, then the smallest possible integer value of a is: SHOW ANSWER
Correct Ans:21 Explanation: Given that, a is twice of b. Let’s take b = x and a = 2x According to the question, (3a + 4b)/2 > 50 3a + 4b > 100 3(2x) + 4(x) > 100 6x + 4x > 100 10x > 100 x > 10 Multiplying 2 on both sides, 2x > 20 a > 20 (Since, 2x = a ) Therefore, the smallest possible integer value of a is 21. Are you seeking for good platform for practicing Number System questions in online. This is the right place. The time you spent in Fresherslive will be the most beneficial one for you. This page provides important questions on Number System along with correct answers and clear explanation, which will be very useful for various Interviews, Competitive examinations and Entrance tests. Here, Most of the Number System questions are framed with Latest concepts, so that you may get updated through these Number System Online tests. Number System Online Test questions are granted from basic level to complex level. Number System questions are delivered with accurate answer. For solving each and every question, very lucid explanations are provided with diagrams wherever necessary. Practice in advance of similar questions on Number System may improve your performance in the real Exams and Interview. Time Management for answering the Number System questions quickly is foremost important for success in Competitive Exams and Placement Interviews. Through Fresherslive Number System questions and answers, you can acquire all the essential idea to solve any difficult questions on Number System in short time and also in short cut method. Winners are those who can use the simplest method for solving a question. So that they have enough time for solving all the questions in examination, correctly without any tense. Fresherslive provides most simplest methods to answer any tough questions. Practise through Fresherslive test series to ensure success in all competitive exams, entrance exams and placement tests. Most of the job seekers finding it hard to clear Number System test or get stuck on any particular question, our Number System test sections will help you to success in Exams as well as Interviews. To acquire clear understanding of Number System, exercise these advanced Number System questions with answers. You're Welcome to use the Fresherslive Online Test at any time you want. Start your beginning, of anything you want by using our sample Number System Online Test and create yourself a successful one. Fresherslive provides you a new opportunity to improve yourself. Take it and make use of it to the fullest. GOODLUCK for Your Bright Future. Page 4Number System Questions: Solved 444 Number System Questions and answers section with explanation for various online exam preparation, various interviews, Aptitude Category online test. Category Questions section with detailed description, explanation will help you to master the topic.
61. In an examination, Rakesh scored 52% marks and failed by 23 marks. In the same examination, Radhika scored 64% marks and get 34 marks more than the passing marks. What is the score of Mohan in the same examination, who secured 84% marks? SHOW ANSWER
Correct Ans:399 Explanation: According to the question, passing marks are equal so, 52% of total marks + 23 = 64% of total marks - 34 23 + 34 = (64 -52)% of total marks 57 = 12% of total marks Total marks = 57*(100/12) = 475 Therefore, Mohan’s mark = 84% of total marks = (84/100)*475 Mohan’s mark = 399.
62. Two numbers are such that the sum of thrice the first number and twice the second number is 20 and the sum of twice the first number and twice the second number is 15. Which is the smaller number? SHOW ANSWER
Correct Ans:1 Explanation: Let the numbers be x and y. 3x + 2y = 20 …..(i) 2x + 3y = 15 ….(ii) Multiply eq (i) by 3 and multiply eq (ii) by 2, 9x + 6y = 60 …..(iii) 4x + 6y = 30 …..(iv) By solving (iii) & (iv), we get x = 6 ; y = 1 Hence the smallest number is 1.
63. A number, when divided by a divisor, leaves a remainder of 24. SHOW ANSWER
Correct Ans:37 Explanation: Let the original number be 'a' Let the divisor be 'd' Let the quotient of the division of aa by dd be 'x' Therefore, we can write the relation as a/d = x and the remainder is 24. i.e., a=dx+24 When twice the original number is divided by d, 2a is divided by d. We know that a=dx+24. Therefore, 2a = 2dx + 48 The problem states that (2dx+48)/d leaves a remainder of 11. 2dx2dx is perfectly divisible by d and will therefore, not leave a remainder. The remainder of 11 was obtained by dividing 48 by d. When 48 is divided by 37, the remainder that one will obtain is 11. Hence, the divisor is 37.
64. How many five digit numbers are there such that two left most digits are even and remaining are odd and digit 4 should not be repeated? SHOW ANSWER
Correct Ans:2375 Explanation: We have 4 cases of first digit {2,4,6,8} 5 cases of second digit {0,2,4,6,8} But 44 is one case we have to omit. So total ways for leftmost two digits are 4 x 5 - 1 = 19 5 cases of third digit {1,3,5,7,9} 5 cases of fourth digit {1,3,5,7,9} 5 cases of fifth digit {1,3,5,7,9} So total ways = 19 x 5 x 5 x 5 = 2375
65. Mr. T has a wrong weighing pan. One arm is lengthier than other. 1 kilogram on left balances 8 melons on right, 1 kilogram on right balances 2 melons on left. If all melons are equal in weight, what is the weight of a single melon. SHOW ANSWER
Correct Ans:200 gm Explanation: Let additional weight on left arm be x. Weight of melon be m x + 1 = 8 x m - - - - - - (1) x + 2 x m = 1 - - - - - - (2) Solving 1 & 2 we get. Weight of a single Melon = 200 gm
66. Due to some defect in our elevator, I was climbing down the staircase. I'd climbed down just 7 steps when I saw a man on the ground floor. Continuing to walk down, I greeted the man and I was surprised to see that when I was yet to get down 4 steps to reach the ground floor, the man had already finished climbing the staircase. He perhaps climbed up 2 steps for every 1 of mine. How many steps did the staircase have? SHOW ANSWER
Correct Ans:22 Explanation: Let’s us take X => No of Steps required by boy to climb No of Steps climbed down when he saw the Old Man at ground floor = 7 After greeting Man no of steps required to climb down = 4 So Total Steps = 7 + 4 => 11 -----(1) Total Steps => X = 11. As the old man takes 2X that is 2 steps for every 1 => 2X ----(2) The total number of Staircase will be X = 11 So Substituting 2 in 1 will be => 2 (11 ) => 22 Total Number of Staircase = 22.
67. In particular language, if A = 0, B = 1, C = 2,........, Y = 24, Z = 25 then what is the value of ONE + ONE (in the form of alphabets only)? SHOW ANSWER
Correct Ans:BDAI Explanation: This problem is based on Base 26 rather than regular base 10 (decimal system) that we normally use. In base 10 there are 10 digits 0 to 9 exist. In base 26 there are 26 digits 0 to 25 exist. To convert any number into base 26, we have to divide the number with 26 and find the remainder. Here,ONE + ONE E has value of 4. So E + E = 8 which is equal to I. Now N + N = 13 + 13 = 26. But in base 26, there is no 26. So
 (26)10= (10)26 So we put 0 and carry over "1" on calculating "O + O". But 0 in this system is A. Hence,N + N = A Now O + O + 1 = 14 + 14 + 1 = 29 Therefore,
(29)10= (13)26 But 1 = B and 3 = D in that system. Hence,O + O = BD So ONE + ONE = BDAI
68. Find the HCF of 59 , 14? SHOW ANSWER
Correct Ans:1 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
69. Two people run around circular track and take 42 sec and 30 sec to make one complete round. If they start together after how much amount of time will they meet again in the same place ? SHOW ANSWER
Correct Ans:3 min 30 sec Explanation: Given: Two people run around circular track and take 42 sec and 30 sec. LCM of ( 42, 30) = 210 They will meet in 210 seconds, which is 3 min 30 sec.
70. What number should come next ? 173, 196, 219, 242, _____ SHOW ANSWER
Correct Ans:265 Explanation: The given series is -- 173, 196, 219, 242Consequtive numbers increases by 23Following this pattern, the Missing Number should increase by 23 from the previous number. When we add 23 to the last number (i.e 242) we get 242+23=265
71. What should come in place of _____ in the below number series? 173, 149, 125, 101, _____ SHOW ANSWER
Correct Ans:77 Explanation: The given series is -- 173, 149, 125, 101Consequtive numbers decreases by 24Following this pattern, the Missing Number should decrease by 24 from the previous number. When we subract 24 to the last number (i.e 101) we get 101- 24 = 77
72. Find the HCF of 59 , 12? SHOW ANSWER
Correct Ans:1 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
73. Find the LCM of 42 , 20? SHOW ANSWER
Correct Ans:420 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
74. In the below given sequence, what should be the next number ? 173, 195, 217, 239, _____ SHOW ANSWER
Correct Ans:261 Explanation: The given series is -- 173, 195, 217, 239Consequtive numbers increases by 22Following this pattern, the Missing Number should increase by 22 from the previous number. When we add 22 to the last number (i.e 239) we get 239+22=261
75. Output of a particular program follows the below pattern. Can you find the next number ? 173, 151, 129, 107, _____ SHOW ANSWER
Correct Ans:85 Explanation: The given series is -- 173, 151, 129, 107Consequtive numbers decreases by 22Following this pattern, the Missing Number should decrease by 22 from the previous number. When we subract 22 to the last number (i.e 107) we get 107-22 = 85
76. Find the HCF of 59 , 10? SHOW ANSWER
Correct Ans:1 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
77. Two bells toll at an interval of 42 and 24 seconds respectively. After they start at the same time, again after how many seconds will they rings together? SHOW ANSWER
Correct Ans:168 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesnt get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
78. A Computer program gave the following output. Can you predict the next number that the computer program would generate as output ? 173, 188, 203, 218, _____ SHOW ANSWER
Correct Ans:233 Explanation: The given series is -- 173, 188, 203, 218Consequtive numbers increases by 15Following this pattern, the Missing Number should increase by 15 from the previous number. When we add 15 to the last number (i.e 218) we get 218+15=233
79. A professor wrote the below series in class room. He wants his students to find the next number. Can you solve it for the professor? 173, 152, 131, 110, _____ SHOW ANSWER
Correct Ans:89 Explanation: The given series is -- 173, 152, 131, 110Consequtive numbers decreases by 21Following this pattern, the Missing Number should decrease by 21 from the previous number. When we subract 21 to the last number (i.e 110) we get 110-21=89
80. Find the HCF of 59 , 8? SHOW ANSWER
Correct Ans:1 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers. Are you seeking for good platform for practicing Number System questions in online. This is the right place. The time you spent in Fresherslive will be the most beneficial one for you. This page provides important questions on Number System along with correct answers and clear explanation, which will be very useful for various Interviews, Competitive examinations and Entrance tests. Here, Most of the Number System questions are framed with Latest concepts, so that you may get updated through these Number System Online tests. Number System Online Test questions are granted from basic level to complex level. Number System questions are delivered with accurate answer. For solving each and every question, very lucid explanations are provided with diagrams wherever necessary. Practice in advance of similar questions on Number System may improve your performance in the real Exams and Interview. Time Management for answering the Number System questions quickly is foremost important for success in Competitive Exams and Placement Interviews. Through Fresherslive Number System questions and answers, you can acquire all the essential idea to solve any difficult questions on Number System in short time and also in short cut method. Winners are those who can use the simplest method for solving a question. So that they have enough time for solving all the questions in examination, correctly without any tense. Fresherslive provides most simplest methods to answer any tough questions. Practise through Fresherslive test series to ensure success in all competitive exams, entrance exams and placement tests. Most of the job seekers finding it hard to clear Number System test or get stuck on any particular question, our Number System test sections will help you to success in Exams as well as Interviews. To acquire clear understanding of Number System, exercise these advanced Number System questions with answers. You're Welcome to use the Fresherslive Online Test at any time you want. Start your beginning, of anything you want by using our sample Number System Online Test and create yourself a successful one. Fresherslive provides you a new opportunity to improve yourself. Take it and make use of it to the fullest. GOODLUCK for Your Bright Future. Page 5Number System Questions: Solved 444 Number System Questions and answers section with explanation for various online exam preparation, various interviews, Aptitude Category online test. Category Questions section with detailed description, explanation will help you to master the topic.
81. Find the least two digit number which will divide 42 and 7 without leaving any remainder ? SHOW ANSWER
Correct Ans:42 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn't get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. So, 42 is a correct answer. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
82. Below Numbers follow a particular pattern. Can you find the next number ? 173, 192, 211, 230, _____ SHOW ANSWER
Correct Ans:249 Explanation: The given series is -- 173, 192, 211, 230Consequtive numbers increases by 19Following this pattern, the Missing Number should increase by 19 from the previous number. When we add 19 to the last number (i.e 230) we get 230+19=249
83. In the given series, can you find the next number ? 173, 154, 135, 116, _____ SHOW ANSWER
Correct Ans:97 Explanation: The given series is -- 173, 154, 135, 116Consequtive numbers decreases by 19Following this pattern, the Missing Number should decrease by 19 from the previous number. When we subract 19 to the last number (i.e 116) we get 116-19= 97
84. Find the HCF of 59 , 6? SHOW ANSWER
Correct Ans:1 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
85. Two bells toll at an interval of 42 sec and 5 sec. After how many seconds, will both the bells ring together? SHOW ANSWER
Correct Ans:210 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesnt get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
86. Fifth number is missing in the below series. Can you find the fifth number in the below series ? 173, 190, 207, 224, _____ SHOW ANSWER
Correct Ans:241 Explanation: The given series is -- 173, 190, 207, 224Consequtive numbers increases by 17Following this pattern, the Missing Number should increase by 17 from the previous number. When we add 17 to the last number (i.e 224) we get 224+17=241
87. Can you find the the next number in the below series 173, 158, 143, 128, _____ SHOW ANSWER
Correct Ans:113 Explanation: The given series is -- 173, 158, 143, 128Consequtive numbers decreases by 15Following this pattern, the Missing Number should decrease by 15 from the previous number. When we subract 15 to the last number (i.e 128) we get 128--15=113
88. Find the HCF of 59 , 22? SHOW ANSWER
Correct Ans:1 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
89. Find the LCM of 42 , 3? SHOW ANSWER
Correct Ans:42 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
90. Fourth number is missing in the below series. Can you find the Fourth number in the below series ? 133, 156, 179, X , 225, 248 SHOW ANSWER
Correct Ans:202 Explanation: The given series is -- 133, 156, 179, X , 225, 248Consequtive numbers increases by 23Following this pattern, the Missing Number X should increase by 23 from the previous number. When we add 23 to the number before X (i.e 179) we get 179+23=202
91. Find the HCF of 12 , 14? SHOW ANSWER
Correct Ans:2 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
92. Find the LCM of 25 , 30? SHOW ANSWER
Correct Ans:150 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
93. Can you find the the missing number in the below series 133, 106, 79, X , 25, -2 SHOW ANSWER
Correct Ans:52 Explanation: The given series is -- 133, 106, 79, X , 25, -2Consequtive numbers decreases by 27Following this pattern, the Missing Number X should decrease by 27 from the previous number. When we subract 27 to the number before X (i.e 79) we get 79--27=52
94. Find the HCF of 12 , 120? SHOW ANSWER
Correct Ans:12 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. So 12 is HCF. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
95. Find the LCM of 25 , 20? SHOW ANSWER
Correct Ans:100 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
96. Find the Missing number in the the below series SHOW ANSWER
Correct Ans:214 Explanation: The given series is -- 133, 160, 187, X , 241, 268 Consequtive numbers increases by 27 Following this pattern, the Missing Number X should increase by 27 from the previous number. When we add 27 to the number before X (i.e 187) we get 187+27=214
97. Find the HCF of 12 , 10? SHOW ANSWER
Correct Ans:2 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
98. Find the LCM of 25 , 24? SHOW ANSWER
Correct Ans:600 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
99. Which number should come in place of the missing Number ? 117, 148, 179, X , 241, 272 SHOW ANSWER
Correct Ans:210 Explanation: The given series is -- 117, 148, 179, X , 241, 272Consequtive numbers increases by 31Following this pattern, the Missing Number X should increase by 31 from the previous number. When we add 31 to the number before X (i.e 179) we get 179+31=210
100. Find the HCF of 12 , 8? SHOW ANSWER
Correct Ans:4 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers. Are you seeking for good platform for practicing Number System questions in online. This is the right place. The time you spent in Fresherslive will be the most beneficial one for you. This page provides important questions on Number System along with correct answers and clear explanation, which will be very useful for various Interviews, Competitive examinations and Entrance tests. Here, Most of the Number System questions are framed with Latest concepts, so that you may get updated through these Number System Online tests. Number System Online Test questions are granted from basic level to complex level. Number System questions are delivered with accurate answer. For solving each and every question, very lucid explanations are provided with diagrams wherever necessary. Practice in advance of similar questions on Number System may improve your performance in the real Exams and Interview. Time Management for answering the Number System questions quickly is foremost important for success in Competitive Exams and Placement Interviews. Through Fresherslive Number System questions and answers, you can acquire all the essential idea to solve any difficult questions on Number System in short time and also in short cut method. Winners are those who can use the simplest method for solving a question. So that they have enough time for solving all the questions in examination, correctly without any tense. Fresherslive provides most simplest methods to answer any tough questions. Practise through Fresherslive test series to ensure success in all competitive exams, entrance exams and placement tests. Most of the job seekers finding it hard to clear Number System test or get stuck on any particular question, our Number System test sections will help you to success in Exams as well as Interviews. To acquire clear understanding of Number System, exercise these advanced Number System questions with answers. You're Welcome to use the Fresherslive Online Test at any time you want. Start your beginning, of anything you want by using our sample Number System Online Test and create yourself a successful one. Fresherslive provides you a new opportunity to improve yourself. Take it and make use of it to the fullest. GOODLUCK for Your Bright Future. Page 6Number System Questions: Solved 444 Number System Questions and answers section with explanation for various online exam preparation, various interviews, Aptitude Category online test. Category Questions section with detailed description, explanation will help you to master the topic.
101. Find the LCM of 25 , 7? SHOW ANSWER
Correct Ans:175 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. The Lcm is 175. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
102. What should come in place of X in the below number series? 117, 88, 59, X , 1, -28 SHOW ANSWER
Correct Ans:30 Explanation: The given series is 117, 88, 59, X , 1, -28 Consequtive numbers decreases by 29 Following this pattern, the Missing Number X should decrease by 29 from the previous number. When we subract 29 to the number before X (i.e 59) we get 59 - 29 = 30
103. Find the HCF of 12 , 6? SHOW ANSWER
Correct Ans:6 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
104. Find the LCM of 25 , 5? SHOW ANSWER
Correct Ans:25 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
105. Output of a particular program follows the below pattern. Can you find the Missing number? 117, 146, 175, X , 233, 262 SHOW ANSWER
Correct Ans:204 Explanation: The given series is -- 117, 146, 175, X , 233, 262 Consequtive numbers increases by 29 Following this pattern, the Missing Number X should increase by 29 from the previous number. When we add 29 to the number before X (i.e 175) we get 175+29=204
106. Find the HCF of 12 , 22? SHOW ANSWER
Correct Ans:2 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
107. Find the LCM of 25 , 3? SHOW ANSWER
Correct Ans:75 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
108. In the below given sequence, what should be the Missing number ? 117, 92, 67, X , 17, -8 SHOW ANSWER
Correct Ans:42 Explanation: The given series is -- 117, 92, 67, X , 17, -8Consequtive numbers decreases by 25Following this pattern, the Missing Number X should decrease by 25 from the previous number. When we subract 25 to the number before X (i.e 67) we get 67--25=42
109. Find the HCF of 19 , 14? SHOW ANSWER
Correct Ans:1 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
110. Find the LCM of 41 , 30? SHOW ANSWER
Correct Ans:1230 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
111. A Computer program gave the following output. Can you predict the Missing number in the computer output ? 117, 142, 167, X , 217, 242 SHOW ANSWER
Correct Ans:192 Explanation: The given series is -- 117, 142, 167, X , 217, 242 Consequtive numbers increases by 25 Following this pattern, the Missing Number X should increase by 25 from the previous number. When we add 25 to the number before X (i.e 167) we get 167+25=192
112. Find the HCF of 19 , 12? SHOW ANSWER
Correct Ans:1 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
113. Find the LCM of 41 , 20? SHOW ANSWER
Correct Ans:820 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
114. A professor wrote down the below series in a class room. He wants his students to find the Missing number. Can you solve it ? 117, 96, 75, X , 33, 12 SHOW ANSWER
Correct Ans:54 Explanation: The given series is -- 117, 96, 75, X , 33, 12Consequtive numbers decreases by 21Following this pattern, the Missing Number X should decrease by 21 from the previous number. When we subract 21 to the number before X (i.e 75) we get 75--21=54
115. Find the HCF of 19 , 10? SHOW ANSWER
Correct Ans:1 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
116. Find the LCM of 41 , 24? SHOW ANSWER
Correct Ans:984 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
117. Below Numbers follow a particular pattern. Can you find the Missing number in the below pattern? 117, 138, 159, X , 201, 222 SHOW ANSWER
Correct Ans:180 Explanation: The given series is -- 117, 138, 159, X , 201, 222Consequtive numbers increases by 21Following this pattern, the Missing Number X should increase by 21 from the previous number. When we add 21 to the number before X (i.e 159) we get 159+21=180
118. Find the HCF of 19 , 8? SHOW ANSWER
Correct Ans:1 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
119. In the given series, can you find the Missing number ? 117, 94, 71, X , 25, 2 SHOW ANSWER
Correct Ans:48 Explanation: The given series is -- 117, 94, 71, X , 25, 2Consequtive numbers decreases by 23Following this pattern, the Missing Number X should decrease by 23 from the previous number. When we subract 23 to the number before X (i.e 71) we get 71--23=48
120. Find the LCM of 41 , 5? SHOW ANSWER
Correct Ans:205 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers. Are you seeking for good platform for practicing Number System questions in online. This is the right place. The time you spent in Fresherslive will be the most beneficial one for you. This page provides important questions on Number System along with correct answers and clear explanation, which will be very useful for various Interviews, Competitive examinations and Entrance tests. Here, Most of the Number System questions are framed with Latest concepts, so that you may get updated through these Number System Online tests. Number System Online Test questions are granted from basic level to complex level. Number System questions are delivered with accurate answer. For solving each and every question, very lucid explanations are provided with diagrams wherever necessary. Practice in advance of similar questions on Number System may improve your performance in the real Exams and Interview. Time Management for answering the Number System questions quickly is foremost important for success in Competitive Exams and Placement Interviews. Through Fresherslive Number System questions and answers, you can acquire all the essential idea to solve any difficult questions on Number System in short time and also in short cut method. Winners are those who can use the simplest method for solving a question. So that they have enough time for solving all the questions in examination, correctly without any tense. Fresherslive provides most simplest methods to answer any tough questions. Practise through Fresherslive test series to ensure success in all competitive exams, entrance exams and placement tests. Most of the job seekers finding it hard to clear Number System test or get stuck on any particular question, our Number System test sections will help you to success in Exams as well as Interviews. To acquire clear understanding of Number System, exercise these advanced Number System questions with answers. You're Welcome to use the Fresherslive Online Test at any time you want. Start your beginning, of anything you want by using our sample Number System Online Test and create yourself a successful one. Fresherslive provides you a new opportunity to improve yourself. Take it and make use of it to the fullest. GOODLUCK for Your Bright Future. Page 7Number System Questions: Solved 444 Number System Questions and answers section with explanation for various online exam preparation, various interviews, Aptitude Category online test. Category Questions section with detailed description, explanation will help you to master the topic.
121. Fourth number is missing in the below series. Can you find the Fourth number in the below series ? 117, 140, 163, X , 209, 232 SHOW ANSWER
Correct Ans:186 Explanation: The given series is -- 117, 140, 163, X , 209, 232Consequtive numbers increases by 23Following this pattern, the Missing Number X should increase by 23 from the previous number. When we add 23 to the number before X (i.e 163) we get 163+23=186
122. Find a number below 20 which can divide 19 and 22 perfectly? SHOW ANSWER
Correct Ans:1 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn't divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. 1 is correct answer. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
123. Find the LCM of 41, 3? SHOW ANSWER
Correct Ans:123 Explanation: The Least Common Multiple (L.C.M) of 3 and 41 can be computed by using the greatest common factor ie.,GCF of 3 and 41. This is the easiest approach: L.C.M(3,41) = (3 X 41) / GCF (3,41) = 123 / 1 = 123
124. Can you find the the missing number in the below series 117, 90, 63, X , 9, -18 SHOW ANSWER
Correct Ans:36 Explanation: The given series is -- 117, 90, 63, X , 9, -18Consequtive numbers decreases by 27Following this pattern, the Missing Number X should decrease by 27 from the previous number. When we subract 27 to the number before X (i.e 63) we get 63--27=36
125. Find the HCF of 36 , 14? SHOW ANSWER
Correct Ans:2 Explanation: Factors of 36 = 1, 2, 3, 4, 6, 9. Factors of 14 = 1, 2, and 7. Therefore, common factor of 36 and 14 = 1 and 2 Highest common factor (H.C.F) of 36 and 14 = 2. Therefore, 2 is H.C.F. or G.C.D. greatest common divisor of 36 and 14. H.C.F. or G.C.D. of given numbers is the greatest number which divides all the numbers without leaving a remainder.
126. Find the LCM of 37 , 30? SHOW ANSWER
Correct Ans:1110 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
127. Find the Missing number in the the below series 117, 144, 171, X , 225, 252 SHOW ANSWER
Correct Ans:198 Explanation: The given series is -- 117, 144, 171, X , 225, 252Consequtive numbers increases by 27Following this pattern, the Missing Number X should increase by 27 from the previous number. When we add 27 to the number before X (i.e 171) we get 171+27=198
128. Find the highest number which can divide 36 and 12, without leaving any remainder ? SHOW ANSWER
Correct Ans:12 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn't divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. So,12 is highest number. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
129. Two bells ring at an interval of 20 sec and 37 secs. After what least time in seconds, will both the bells ring together ? SHOW ANSWER
Correct Ans:740 Explanation: Given Two bells ring at an interval of 20 to 37 secs => When both bells ring together at least time => 20 * 37 => 740 seconds
130. Which number should come in place of the missing Number ? 112, 143, 174, X , 236, 267 SHOW ANSWER
Correct Ans:205 Explanation: The given series is -- 112, 143, 174, X , 236, 267Consequtive numbers increases by 31Following this pattern, the Missing Number X should increase by 31 from the previous number. When we add 31 to the number before X (i.e 174) we get 174+31=205
131. Find the HCF of 36 , 10? SHOW ANSWER
Correct Ans:2 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
132. Find the LCM of 37 , 24? SHOW ANSWER
Correct Ans:888 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
133. What should come in place of X in the below number series? 112, 83, 54, X , -4, -33 SHOW ANSWER
Correct Ans:25 Explanation: The given series is -- 112, 83, 54, X , -4, -33Consequtive numbers decreases by 29Following this pattern, the Missing Number X should decrease by 29 from the previous number. When we subract 29 to the number before X (i.e 54) we get 54-29=25
134. Find the HCF of 36 , 8? SHOW ANSWER
Correct Ans:4 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
135. Find the LCM of 37 , 7? SHOW ANSWER
Correct Ans:259 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
136. Output of a particular program follows the below pattern. Can you find the Missing number? 112, 141, 170, X , 228, 257 SHOW ANSWER
Correct Ans:199 Explanation: The given series is -- 112, 141, 170, X , 228, 257 Consequtive numbers increases by 29 Following this pattern, the Missing Number X should increase by 29 from the previous number. When we add 29 to the number before X (i.e 170) we get 170+29=199
137. Find the HCF of 36 , 6? SHOW ANSWER
Correct Ans:6 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. The HCF is 6 Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
138. Find the LCM of 37 , 5? SHOW ANSWER
Correct Ans:185 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
139. In the below given sequence, what should be the Missing number ? 112, 87, 62, X , 12, -13 SHOW ANSWER
Correct Ans:37 Explanation: The given series is -- 112, 87, 62, X , 12, -13Consequtive numbers decreases by 25Following this pattern, the Missing Number X should decrease by 25 from the previous number. When we subract 25 to the number before X (i.e 62) we get 62-25=37
140. Find the HCF of 36 , 22? SHOW ANSWER
Correct Ans:2 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers. Are you seeking for good platform for practicing Number System questions in online. This is the right place. The time you spent in Fresherslive will be the most beneficial one for you. This page provides important questions on Number System along with correct answers and clear explanation, which will be very useful for various Interviews, Competitive examinations and Entrance tests. Here, Most of the Number System questions are framed with Latest concepts, so that you may get updated through these Number System Online tests. Number System Online Test questions are granted from basic level to complex level. Number System questions are delivered with accurate answer. For solving each and every question, very lucid explanations are provided with diagrams wherever necessary. Practice in advance of similar questions on Number System may improve your performance in the real Exams and Interview. Time Management for answering the Number System questions quickly is foremost important for success in Competitive Exams and Placement Interviews. Through Fresherslive Number System questions and answers, you can acquire all the essential idea to solve any difficult questions on Number System in short time and also in short cut method. Winners are those who can use the simplest method for solving a question. So that they have enough time for solving all the questions in examination, correctly without any tense. Fresherslive provides most simplest methods to answer any tough questions. Practise through Fresherslive test series to ensure success in all competitive exams, entrance exams and placement tests. Most of the job seekers finding it hard to clear Number System test or get stuck on any particular question, our Number System test sections will help you to success in Exams as well as Interviews. To acquire clear understanding of Number System, exercise these advanced Number System questions with answers. You're Welcome to use the Fresherslive Online Test at any time you want. Start your beginning, of anything you want by using our sample Number System Online Test and create yourself a successful one. Fresherslive provides you a new opportunity to improve yourself. Take it and make use of it to the fullest. GOODLUCK for Your Bright Future. Page 8Number System Questions: Solved 444 Number System Questions and answers section with explanation for various online exam preparation, various interviews, Aptitude Category online test. Category Questions section with detailed description, explanation will help you to master the topic.
141. Find the LCM of 37 , 3? SHOW ANSWER
Correct Ans:111 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
142. A Computer program gave the following output. Can you predict the Missing number in the computer output ? 112, 137, 162, X , 212, 237 SHOW ANSWER
Correct Ans:187 Explanation: The given series is -- 112, 137, 162, X , 212, 237Consequtive numbers increases by 25Following this pattern, the Missing Number X should increase by 25 from the previous number. When we add 25 to the number before X (i.e 162) we get 162+25=187
143. Find the HCF of 32 , 14? SHOW ANSWER
Correct Ans:2 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. The answer is 2. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
144. Two bells toll at an interval of 30, 31 seconds. After how many seconds they will ring together ? SHOW ANSWER
Correct Ans:930 Explanation: Given: Two bells ring at an interval of 30 to 31 secs When both bells ring together at time =30 * 31 = 930 seconds.
145. A professor wrote down the below series in a class room. He wants his students to find the Missing number. Can you solve it ? 112, 91, 70, X , 28, 7 SHOW ANSWER
Correct Ans:49 Explanation: The given series is -- 112, 91, 70, X , 28, 7Consequtive numbers decreases by 21Following this pattern, the Missing Number X should decrease by 21 from the previous number. When we subract 21 to the number before X (i.e 70) we get 70-21 = 49
146. Find the HCF of 32 , 12? SHOW ANSWER
Correct Ans:4 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
147. Find the LCM of 31 , 20? SHOW ANSWER
Correct Ans:620 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
148. Below Numbers follow a particular pattern. Can you find the Missing number in the below pattern? 112, 133, 154, X , 196, 217 SHOW ANSWER
Correct Ans:175 Explanation: The given series is -- 112, 133, 154, X , 196, 217Consequtive numbers increases by 21Following this pattern, the Missing Number X should increase by 21 from the previous number. When we add 21 to the number before X (i.e 154) we get 154+21=175
149. Find the HCF of 32 , 10? SHOW ANSWER
Correct Ans:2 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
150. Find the LCM of 31 , 24? SHOW ANSWER
Correct Ans:744 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
151. In the given series, can you find the Missing number ? 112, 89, 66, X , 20, -3 SHOW ANSWER
Correct Ans:43 Explanation: The given series is -- 112, 89, 66, X , 20, -3Consequtive numbers decreases by 23Following this pattern, the Missing Number X should decrease by 23 from the previous number. When we subract 23 to the number before X (i.e 66) we get 66-23=43
152. Find the HCF of 32 , 8? SHOW ANSWER
Correct Ans:8 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
153. Find the LCM of 31 , 7? SHOW ANSWER
Correct Ans:217 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
154. Fourth number is missing in the below series. Can you find the Fourth number in the below series ? 112, 135, 158, X , 204, 227 SHOW ANSWER
Correct Ans:181 Explanation: The given series is -- 112, 135, 158, X , 204, 227Consequtive numbers increases by 23Following this pattern, the Missing Number X should increase by 23 from the previous number. When we add 23 to the number before X (i.e 158) we get 158+23=181
155. Find the HCF of 32 , 6? SHOW ANSWER
Correct Ans:2 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
156. Find the LCM of 31 , 5 ? SHOW ANSWER
Correct Ans:155 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
157. Can you find the the missing number in the below series 112, 85, 58, X , 4, -23 SHOW ANSWER
Correct Ans:31 Explanation: The given series is -- 112, 85, 58, X , 4, -23Consequtive numbers decreases by 27Following this pattern, the Missing Number X should decrease by 27 from the previous number. When we subract 27 to the number before X (i.e 58) we get 58-27=31
158. Find the HCF of 32 , 22 ? SHOW ANSWER
Correct Ans:2 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
159. Find the LCM of 31 , 3 ? SHOW ANSWER
Correct Ans:93 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
160. Find the Missing number in the the below series 112, 139, 166, X , 220, 247 SHOW ANSWER
Correct Ans:193 Explanation: The given series is -- 112, 139, 166, X , 220, 247 Consequtive numbers increases by 27 Following this pattern, the Missing Number X should increase by 27 from the previous number. When we add 27 to the number before X (i.e 166) we get 166+27=193 Are you seeking for good platform for practicing Number System questions in online. This is the right place. The time you spent in Fresherslive will be the most beneficial one for you. This page provides important questions on Number System along with correct answers and clear explanation, which will be very useful for various Interviews, Competitive examinations and Entrance tests. Here, Most of the Number System questions are framed with Latest concepts, so that you may get updated through these Number System Online tests. Number System Online Test questions are granted from basic level to complex level. Number System questions are delivered with accurate answer. For solving each and every question, very lucid explanations are provided with diagrams wherever necessary. Practice in advance of similar questions on Number System may improve your performance in the real Exams and Interview. Time Management for answering the Number System questions quickly is foremost important for success in Competitive Exams and Placement Interviews. Through Fresherslive Number System questions and answers, you can acquire all the essential idea to solve any difficult questions on Number System in short time and also in short cut method. Winners are those who can use the simplest method for solving a question. So that they have enough time for solving all the questions in examination, correctly without any tense. Fresherslive provides most simplest methods to answer any tough questions. Practise through Fresherslive test series to ensure success in all competitive exams, entrance exams and placement tests. Most of the job seekers finding it hard to clear Number System test or get stuck on any particular question, our Number System test sections will help you to success in Exams as well as Interviews. To acquire clear understanding of Number System, exercise these advanced Number System questions with answers. You're Welcome to use the Fresherslive Online Test at any time you want. Start your beginning, of anything you want by using our sample Number System Online Test and create yourself a successful one. Fresherslive provides you a new opportunity to improve yourself. Take it and make use of it to the fullest. GOODLUCK for Your Bright Future. Page 9Number System Questions: Solved 444 Number System Questions and answers section with explanation for various online exam preparation, various interviews, Aptitude Category online test. Category Questions section with detailed description, explanation will help you to master the topic.
161. Find the next number 2, 6, 12, 20, ? SHOW ANSWER
Correct Ans:30 Explanation: Solution is Each number in the given series is the Product of two consecutive natural numbers. Given series is 2, 6, 12, 20 First number = 1 x 2 = 2 Second number = 2 x 3 = 6 Third number = 3 x 4 =12 Fourth number = 4 x 5 = 20 Next number will be = (5 x 6) = 30 Answer is 30
162. What number comes next : 899 , 960 , 1023 , 1088 , ... ? SHOW ANSWER
Correct Ans:1155 Explanation: Given 899 , 960 , 1023 , 1088 ,... First number (899) is 30 x 30 - 1 Second number (960) is 31 x 31 - 1 Third number (1023) is 32 x 32 - 1 Fourth number (1088) is 33 x 33 - 1 Next number has to be 34 x 34 - 1 = 1155 Answer is 1155
163. What number comes next : 99 , 120 , 143 , 168 , ... ? SHOW ANSWER
Correct Ans:195 Explanation: Given Given series is 99 , 120 , 143 , 168 , ... First number (99) is 10 x 10 - 1 Second number (120) is 11 x 11 - 1 Third number (143) is 12 x 12 - 1 Fourth number (168) is 13 x 13 - 1 Next number has to be 14 x 14 - 1 = 195 Answer is 195
164. What number shoud come next ? 2, 3, 5, 7, 11, ? SHOW ANSWER
Correct Ans:13 Explanation: Solution is 2, 3, 5, 7, 11 Prime numbers written in the order Answer is 13
165. What number comes next : 1023 , 1088 , 1155 , 1224 , ... ? SHOW ANSWER
Correct Ans:1295 Explanation: Solution is : Given series is 1023 , 1088 , 1155 , 1224 ,... First number (1023) is 32 x 32-1 Second number (1088) is 33 x 33-1 Third number (1155) is 34 x 34 -1 Fourth number (1224) is 35 x 35 -1 Next number has to be 36 x 36-1 = 1295 Answer is 1295
166. Find the missing term : 0, 2, 6, 12, 20, 30, ? SHOW ANSWER
Correct Ans:42 Explanation: Solution is : Given 0, 2, 6, 12, 20, 30 First number (0) is: 12- 1, Second number (2) is: 22- 2, Third number (6) is: 32- 3, Fourth number (12) is: 42- 4, Fifth number (20) is: 52- 5, Sixth number (30) is: 62- 6 The next term has to be 72- 7 = 49 - 7 = 42
167. Find the next number 2, 5, 10, 17, ? SHOW ANSWER
Correct Ans:26 Explanation: Solution is : Given : 2, 5 , 10, 17 First number (2) = 12 +1, Second number (5) = 22 + 1, Third number (10) = 32 + 1, Fourth number (17) = 42 +1 , Missing number = (52+1) = 25 + 1 = 26 So,Answer is 26
168. What number comes next : 901 , 962 , 1025 , 1090 , ... ? SHOW ANSWER
Correct Ans:1157 Explanation: Solution is: Given 901 , 962 , 1025 , 1090 First number (901) is 30 x 30 + 1 Second number (962) is 31 x 31 + 1 Third number (1025) is 32 x 32 + 1 Fourth number (1090) is 33 x 33 + 1 Next number has to be 34 x 34 +1 = 1157
169. What number comes next : 8 , 15 , 24 , 35 , ... ? SHOW ANSWER
Correct Ans:48 Explanation: Solution is Given 8 , 15 , 24 , 35 , ... First number (8) is 3 x 3 - 1 , Second number (15) is 4 x 4 - 1 , Third number (24) is 5 x 5 - 1 , Fourth number (35) is 6 x 6 - 1 Next number has to be 7 x 7 - 1 = 48
170. In the given series, can you find the Missing number? SHOW ANSWER
Correct Ans:60 Explanation: Solution is : The given series is 106, 83, X , 37, 14 Consecutive numbers decreases by 23 Following this pattern, the Missing Number X should decrease by 23 from the previous number. When we subract 23 to the number before X( i.e 83 ) we get 83 - 23= 60.
171. What number comes next : 99 , 120 , 143 , 168 , __ ? SHOW ANSWER
Correct Ans:195 Explanation: Solution is SoNext number has to 14 x 14 - 1 = 195 Answer is 195
172. What number comes next : 8 , 15 , 24 , 35 , ... ? SHOW ANSWER
Correct Ans:48 Explanation: Solution is : Given 8 , 15 , 24 , 35 , ... First number is 3 x 3-1 , Second number is 4 x 4-1 , Third number is 5 x 5 -1 , Fourth number is 6 x 6 -1 Next number has to 7 x 7-1 = 48
173. Find the NEXT term : 11, 17, 15, 21, 19, ? SHOW ANSWER
Correct Ans:25 Explanation: Given 11, 17, 15, 21, 19 The above terms follow the pattern +6, -2, +6, -2, +6, -2, ... 11, 11+6=17, 17-2=15, 15 +6 = 21, 21-2=19 Now, 19+6 =25 Hence the next term has to be 25
174. Find the NEXT term : 0, 2, 6, 12, 20, 30, ? SHOW ANSWER
Correct Ans:42 Explanation: Given flow is: 0, 2, 6, 12, 20, 30
175. What number shoud come next 34, 17, 18, 9, ? SHOW ANSWER
Correct Ans:10 Explanation: Solution is Answer is 10
176. What number shoud come next ? SHOW ANSWER
Correct Ans:100 Explanation: 12 =3 x 4 30 = 5 x 6 56 = 7 x 8 90 = 9 x 10
177. Look at this series: 2, 1, (1/2), (1/4), ... What number should come next ? SHOW ANSWER
Correct Ans:1 / 8 Explanation: Solution is Answer is 1 / 8
178. Find the next number, 2, 5, 10, 17, ? SHOW ANSWER
Correct Ans:26 Explanation: Solution is : Given : 2, 5 , 10, 17 = 12 +1, 22 + 1, 32 + 1, 42 +1 , (52+1) So,Answer is 26
179. Find the next number, SHOW ANSWER
Correct Ans:30 Explanation: Given : 2, 6, 12, 20 1 x 2, 2 x 3, 3 x 4, 4 x 5, (5 x 6) Answer is 30. Product of two consecutive natural numbers
180. If a quarter kg of potato costs 60 paisa, how many paisa will 200gm cost ? SHOW ANSWER
Correct Ans:52 Explanation: Quarter kg = 250 grams Less weight, less price (direct proportion) 250 : 200 :: 60 : x x = (200 x 60)/ 250 => x = 48 So 200 gm will cost 48 paisa Are you seeking for good platform for practicing Number System questions in online. This is the right place. The time you spent in Fresherslive will be the most beneficial one for you. This page provides important questions on Number System along with correct answers and clear explanation, which will be very useful for various Interviews, Competitive examinations and Entrance tests. Here, Most of the Number System questions are framed with Latest concepts, so that you may get updated through these Number System Online tests. Number System Online Test questions are granted from basic level to complex level. Number System questions are delivered with accurate answer. For solving each and every question, very lucid explanations are provided with diagrams wherever necessary. Practice in advance of similar questions on Number System may improve your performance in the real Exams and Interview. Time Management for answering the Number System questions quickly is foremost important for success in Competitive Exams and Placement Interviews. Through Fresherslive Number System questions and answers, you can acquire all the essential idea to solve any difficult questions on Number System in short time and also in short cut method. Winners are those who can use the simplest method for solving a question. So that they have enough time for solving all the questions in examination, correctly without any tense. Fresherslive provides most simplest methods to answer any tough questions. Practise through Fresherslive test series to ensure success in all competitive exams, entrance exams and placement tests. Most of the job seekers finding it hard to clear Number System test or get stuck on any particular question, our Number System test sections will help you to success in Exams as well as Interviews. To acquire clear understanding of Number System, exercise these advanced Number System questions with answers. You're Welcome to use the Fresherslive Online Test at any time you want. Start your beginning, of anything you want by using our sample Number System Online Test and create yourself a successful one. Fresherslive provides you a new opportunity to improve yourself. Take it and make use of it to the fullest. GOODLUCK for Your Bright Future. Page 10Number System Questions: Solved 444 Number System Questions and answers section with explanation for various online exam preparation, various interviews, Aptitude Category online test. Category Questions section with detailed description, explanation will help you to master the topic.
181. How much part of a day is 45 minutes ? SHOW ANSWER
Correct Ans:(1/32) Explanation: 45 minutes = 3/4 of an hour. An hour = 1 / 24 of day 3/4 of hour = 3/ (4 x 24) of day = 1/32 of the day.
182. 27^20 / 27^10 = 3^k, then k = ? SHOW ANSWER
Correct Ans:30 Explanation: 27^20 ? 27^10 = 3^k => 27^10 = 3^k => (3^3)10 = 3^k => 3^30 = 3^k.
183. Five - sixths of a number is 720. What will be 45 % of that number ? SHOW ANSWER
Correct Ans:388.8 Explanation: Let the number be k Then 5k/6 = 720 => k = 720 x (6/5) = 864 45% of 864 = (45/100) x 864 = 388.8
184. By how much is 3/4th of 568 lesser than 7/8th of 1008 SHOW ANSWER
Correct Ans:456 Explanation: 7/8 * 1008=882 3/4* 568=426
185. Find the value of k, if k / 171 = 76 / k SHOW ANSWER
Correct Ans:114 Explanation: k / 171 = 76 / k ? k2 = 76 x 171 = 4 x 19 x 19 x 9 ? k2=22 x 192 x 32 => k = 2 x 19 x 3 => k = 114
186. If the numerator of a fraction is increased by 300% and the denominator is increased by 100%, the resultant fraction is 1 11/19 . Find the original fraction. SHOW ANSWER
Correct Ans:15/19 Explanation: Let the original fraction be x/y. Numerator increased by 300% means, it is quadrupled. Denominator increase by 100% means, it is doubled. New fraction is 4x/2y = 30/19 (writing in simple fraction) ? 2x/y = 30/19 => x/y = 15/19
187. Which of the following number should be added to 28614 in order to obtain a multiple of 87 ? SHOW ANSWER
Correct Ans:9 Explanation: On dividing the given number 28614 by 87, we have the remainder = 78. That is 28614 = 87 x 328 + 78 Therefore, the required number to be added is 87-78 = 9
188. The sum of two numbers is 16 and their difference is 2. Find the product of the two numbers SHOW ANSWER
Correct Ans:63 Explanation: Let the two numbers be x and y. Sum of the two numbers: x + y=16. Difference of the two numbers: x - y = 2. Adding these two equation, we get 2x = 18 => x = 9 Subtracting these two equation, we get 2y = 14 => y = 7 Product of these two numbers : (x) * (y) = 9 * 7 = 63
189. What number comes next : 899 , 960 , 1023 , 1088 , ... ? SHOW ANSWER
Correct Ans:1155 Explanation: Given 899 , 960 , 1023 , 1088 ,... First number is (30 x 30)-1 , Second number is (31 x 31)-1 , Third number is (32 x 32) -1 , Fourth number is (33 x 33) -1 The numbers are in the form of n2 ? 1 Next number has to 34 x 34-1 = 1155
190. What should come in place of the question mark (?) in the following number series 2 5 11 23 47 ? SHOW ANSWER
Correct Ans:95 Explanation: 2 5 11 23 47 ? It is clear that the next number has to be 47 + 48 =95
191. If the product of two successive positive integers is 5328, which is the smallest integer? SHOW ANSWER
Correct Ans:72 Explanation: 72 x 74 = 5328
192. On dividing a number by 357, we get 39 as remainder. On dividing the same number by 17, what will be the remainder? SHOW ANSWER
Correct Ans:5 Explanation: Let X be the number and y be the quotient. Then, X = 357 x y + 39 =(17x21xy)+(17x2)+5 =17 x (21y+2)+5 So, required number = 5
193. Cube root of (941192) = ? SHOW ANSWER
Correct Ans:98 Explanation: 98 x 98 x 98 = 941192
194. The difference between a two digit number and the number obtained by interchanging two digits of the number is 9.The sum of the two digits of the number is 15. What is product of the two digits of two digit number ? SHOW ANSWER
Correct Ans:56 Explanation: Sum of the digits is 15, this can happen only when the digits are 7 and 8. The number is 87, interchanging digits we get 78, Difference between these two numbers = 9 Product of these two digits = 7 x 8 = 56
195. The product of two consecutive even numbers is 15128. Find the average of these two numbers. SHOW ANSWER
Correct Ans:123 Explanation: We wil go from the option. We will eliminate 133 and 139, since their product will exceed 16900. Now the tug of war is between 123 and 127. Lets take 123, if 123 is the average then the consecutive even numbers will be 122 and 124. Now, observe, 122 x 124 = ....8, that is the resulting number ends with 8. Now you try for 127. (HINT : The consecutive even number with 127 as average us 126 and 128) The two numbers are 122 and 124. Average is 123.
196. What is the least number to be added with 2016 to make it perfect square? SHOW ANSWER
Correct Ans:9 Explanation: 452 = 2025, If we add 9 with 2016 we get 2025.
197. When all students in a school are made to stand in a row of 54, 30 such rows are formed. If the students are made to stand in the rows of 45, how many such rows can be formed ? SHOW ANSWER
Correct Ans:36 Explanation: Given number of rows = 54, each row contains 30 students. Total number of students = 54 x 30. If there are 45 and k rows, then 45 x k = 54 x 30 Dividing both sides by 9, we get 5 x k = 6 x 30 => k 36
198. Find a positive number which when increased by 17 is equal to 60 times the reciprocal of the number . SHOW ANSWER
Correct Ans:3 Explanation: Let the number be x. Then, x + 17 = 60 / x => x ^2 + 17x - 60 = 0 => (x + 20)(x - 3) = 0 => x = 3.
199. In a two-digit, if it is known that its unit's digit exceeds its ten's digit by 2 and that the product of the given number and the sum of its digits is equal to 144, then the number is: SHOW ANSWER
Correct Ans:24 Explanation: Let the ten's digit be x. Then, unit's digit = x + 2. Number = 10x + (x + 2) = 11x + 2. Sum of digits = x + (x + 2) = 2x + 2. (11x + 2)(2x + 2) = 144 22x2 + 26x - 140 = 0 11x2 + 13x - 70 = 0 (x - 2)(11x + 35) = 0 x = 2. Hence, required number = 11x + 2 = 24.
200. A number consists of two digits. If the digits interchange places and the new number is added to the original number, then the resulting number will be divisible by: SHOW ANSWER
Correct Ans:11 Explanation: Let the ten's digit be x and unit's digit be y. Then, number = 10x + y. Number obtained by interchanging the digits = 10y + x. Therefore, (10x + y) + (10y + x) = 11(x + y), which is divisible by 11. Are you seeking for good platform for practicing Number System questions in online. This is the right place. The time you spent in Fresherslive will be the most beneficial one for you. This page provides important questions on Number System along with correct answers and clear explanation, which will be very useful for various Interviews, Competitive examinations and Entrance tests. Here, Most of the Number System questions are framed with Latest concepts, so that you may get updated through these Number System Online tests. Number System Online Test questions are granted from basic level to complex level. Number System questions are delivered with accurate answer. For solving each and every question, very lucid explanations are provided with diagrams wherever necessary. Practice in advance of similar questions on Number System may improve your performance in the real Exams and Interview. Time Management for answering the Number System questions quickly is foremost important for success in Competitive Exams and Placement Interviews. Through Fresherslive Number System questions and answers, you can acquire all the essential idea to solve any difficult questions on Number System in short time and also in short cut method. Winners are those who can use the simplest method for solving a question. So that they have enough time for solving all the questions in examination, correctly without any tense. Fresherslive provides most simplest methods to answer any tough questions. Practise through Fresherslive test series to ensure success in all competitive exams, entrance exams and placement tests. Most of the job seekers finding it hard to clear Number System test or get stuck on any particular question, our Number System test sections will help you to success in Exams as well as Interviews. To acquire clear understanding of Number System, exercise these advanced Number System questions with answers. You're Welcome to use the Fresherslive Online Test at any time you want. Start your beginning, of anything you want by using our sample Number System Online Test and create yourself a successful one. Fresherslive provides you a new opportunity to improve yourself. Take it and make use of it to the fullest. GOODLUCK for Your Bright Future. Page 11Number System Questions: Solved 444 Number System Questions and answers section with explanation for various online exam preparation, various interviews, Aptitude Category online test. Category Questions section with detailed description, explanation will help you to master the topic.
201. The sum of the squares of three numbers is 138, while the sum of their products taken two at a time is 131. Their sum is: SHOW ANSWER
Correct Ans:20 Explanation: Let the numbers be a, b and c.
202. The sum of the digits of a two-digit number is 15 and the difference between the digits is 3. What is the two-digit number? SHOW ANSWER
Correct Ans:Cannot be determined Explanation: Let the ten's digit be x and unit's digit be y. Then, x + y = 15 and x - y = 3 or y - x = 3. Solving x + y = 15 and x - y = 3, we get: x = 9, y = 6. Solving x + y = 15 and y - x = 3, we get: x = 6, y = 9. So, the number is either 96 or 69. Hence, the number cannot be determined
203. A two-digit number is such that the product of the digits is 8. When 18 is added to the number, then the digits are reversed. The number is: SHOW ANSWER
Correct Ans:24 Explanation: Let the ten's and unit's digit be x and 8 / x respectively. Then, (10 x + 8 / x) + 18 = (10 x 8 / x) + x => 10x ^2 + 8 + 18x = 80 + x^2 => 9x^2 + 18x - 72 = 0 => x^2 + 2x - 8 = 0 => (x + 4)(x - 2) = 0 => x = 2 => ten's digit => 8 / x = 8/2 = 4 => unit's digit Hence the number is 24
204. The difference between a two-digit number and the number obtained by interchanging the digits is 36. What is the difference between the sum and the difference of the digits of the number if the ratio between the digits of the number is 1 : 2? SHOW ANSWER
Correct Ans:8 Explanation: Since the number is greater than the number obtained on reversing the digits, so the ten's digit is greater than the unit's digit. Let ten's and unit's digits be 2x and x respectively. Then, (10 x 2x + x) - (10x + 2x) = 36 => 9x = 36 => x = 4 Required difference = (2x + x) - (2x - x) = 2x = 8
205. If one-third of one-fourth of a number is 15, then three-tenth of that number is: SHOW ANSWER
Correct Ans:54 Explanation: Let the number be x. Then, 1/3 of 1/4 of x = 15 <=> x = 15 x 12 = 180. So, required number = ( 3 / 10 x 180 ) = 54.
206. {(476 + 424)2 - 4 x 476 x 424} = ? SHOW ANSWER
Correct Ans:2704 Explanation: Given Exp. = [(a + b)2 - 4ab] = (a-b)2, where a = 476 and b = 424 [(476 + 424)2 - 4 x 476 x 424] = (476 - 424)2 = 522 = 2704
207. (1000)^9 / 10^24 = ? SHOW ANSWER
Correct Ans:1000 Explanation: Given Exp. = (1000)9 / 10^24 = (10^3)^9/10^24 = 10^(27-24) = 10^3 = 1000
208. Which one of the following can't be the square of natural number ? SHOW ANSWER
Correct Ans:143642 Explanation: The square of a natural number nerver ends in 2. 143642 is not the square of natural number.
209. 3 + 33 + 333 + 3.33 = ? SHOW ANSWER
Correct Ans:372.33 Explanation: 3 + 33 + 333 + 3.33 ------ 372.33 ------
210. 287 x 287 + 269 x 269 - 2 x 287 x 269 = ? SHOW ANSWER
Correct Ans:324 Explanation: Given Exp. = a^2 + b^2 - 2ab, where a = 287 and b = 269 = (a - b)^2 = (287 - 269)^2 = (18^2) = 324 SHOW ANSWER
Correct Ans:280.875 Explanation: Given Exp. = 8988 x 1/8 x 1/4 = 2247 / 8 = 280.875
212. 8796 x 223 + 8796 x 77 = ? SHOW ANSWER
Correct Ans:2638800 Explanation: 8796 x 223 + 8796 x 77 = 8796 x (223 + 77) [Ref: By Distributive Law ] = (8796 x 300) = 2638800 SHOW ANSWER
Correct Ans:3893103 Explanation: 3897 x 999 = 3897 x (1000 - 1) = 3897 x 1000 - 3897 x 1 = 3897000 - 3897 = 3893103.
214. If the number 653 xy is divisible by 90, then (x + y) = ? SHOW ANSWER
Correct Ans:4 Explanation: 90 = 10 x 9 Clearly, 653xy is divisible by 10, so y = 0 Now, 653x0 is divisible by 9. So, (6 + 5 + 3 + x + 0) = (14 + x) is divisible by 9. So, x = 4. Hence, (x + y) = (4 + 0) = 4.
215. The unit digit in the product (784 x 618 x 917 x 463) is: SHOW ANSWER
Correct Ans:2 Explanation: Unit digit in the given product = Unit digit in (4 x 8 x 7 x 3) = (672) = 2
216. 217 x 217 + 183 x 183 = ? SHOW ANSWER
Correct Ans:80578 Explanation: (217)^2 + (183)^2 = (200 + 17)^2 + (200 - 17)^2 = 2 x [(200)2 + (17)2] [Ref: (a + b)2 + (a - b)2 = 2(a2 + b2)] = 2[40000 + 289] = 2 x 40289 = 80578. SHOW ANSWER
Correct Ans:4155 Explanation: Let 7589 -x = 3434 Then, x = 7589 - 3434 = 4155
218. 3251 + 587 + 369 - ? = 3007 SHOW ANSWER
Correct Ans:1200 Explanation: 3251 Let 4207 - x = 3007 + 587 Then, x = 4207 - 3007 = 1200 + 369 ---- 4207 ----
219. On dividing a number by 68, we get 269 as quotient and 0 as remainder. On dividing the same number by 67, what will be the remainder ? SHOW ANSWER
Correct Ans:1 Explanation: Number = 269 x 68 + 0 = 18292
220. The difference between the place values of two sevens in the numeral 69758472 is SHOW ANSWER
Correct Ans:699930 Explanation: Required difference = (700000 - 70) = 699930 Are you seeking for good platform for practicing Number System questions in online. This is the right place. The time you spent in Fresherslive will be the most beneficial one for you. This page provides important questions on Number System along with correct answers and clear explanation, which will be very useful for various Interviews, Competitive examinations and Entrance tests. Here, Most of the Number System questions are framed with Latest concepts, so that you may get updated through these Number System Online tests. Number System Online Test questions are granted from basic level to complex level. Number System questions are delivered with accurate answer. For solving each and every question, very lucid explanations are provided with diagrams wherever necessary. Practice in advance of similar questions on Number System may improve your performance in the real Exams and Interview. Time Management for answering the Number System questions quickly is foremost important for success in Competitive Exams and Placement Interviews. Through Fresherslive Number System questions and answers, you can acquire all the essential idea to solve any difficult questions on Number System in short time and also in short cut method. Winners are those who can use the simplest method for solving a question. So that they have enough time for solving all the questions in examination, correctly without any tense. Fresherslive provides most simplest methods to answer any tough questions. Practise through Fresherslive test series to ensure success in all competitive exams, entrance exams and placement tests. Most of the job seekers finding it hard to clear Number System test or get stuck on any particular question, our Number System test sections will help you to success in Exams as well as Interviews. To acquire clear understanding of Number System, exercise these advanced Number System questions with answers. You're Welcome to use the Fresherslive Online Test at any time you want. Start your beginning, of anything you want by using our sample Number System Online Test and create yourself a successful one. Fresherslive provides you a new opportunity to improve yourself. Take it and make use of it to the fullest. GOODLUCK for Your Bright Future. Page 12Number System Questions: Solved 444 Number System Questions and answers section with explanation for various online exam preparation, various interviews, Aptitude Category online test. Category Questions section with detailed description, explanation will help you to master the topic.
221. 666 x 6^{-1} x 3^{-1} = ? SHOW ANSWER
Correct Ans:37 Explanation: Given Exp. = 666 x 1/6 x 1/3 = 37 SHOW ANSWER
Correct Ans:57.5 Explanation: Given Exp. = 35 + 15 x 3/2 = 35 + 45/2 = 35 + 22.5 = 57.5
223. Which one of the following can't be the square of natural number ? SHOW ANSWER
Correct Ans:42437 Explanation: The square of a natural number never ends in 7. Therefore, 42437 is not the square of a natural number.
224. If (64) ^2 - (36)^2 = 20 x X, then X = ? SHOW ANSWER
Correct Ans:140 Explanation: 20 x x = (64 + 36)(64 - 36) = 100 x 28 SHOW ANSWER
Correct Ans:586413 Explanation: 587 x 999 = 587 x (1000 - 1) = 587 x 1000 - 587 x 1 = 587000 - 587 = 586413.
226. The difference of the squares of two consecutive odd integers is divisible by which of the following integers ? SHOW ANSWER
Correct Ans:8 Explanation: Let the two consecutive odd integers be (2n + 1) and (2n + 3). Then, (2n + 3) ^2 - (2n + 1)^2 = (2n + 3 + 2n + 1) (2n + 3 - 2n - 1) = (4n + 4) x 2 = 8(n + 1), which is divisible by 8.
227. If x and y are the two digits of the number 653xy such that this number is divisible by 80, then x + y = ? SHOW ANSWER
Correct Ans:2 or 6 Explanation: 80 = 2 x 5 x 8 Since 653xy is divisible by 2 and 5 both, so y = 0. Now, 653x is divisible by 8, so 13x should be divisible by 8. This happens when x = 6. x + y = (6 + 0) = 6.
228. If 60% of 3 / 5 of a number is 36, then the number is: SHOW ANSWER
Correct Ans:100 Explanation: Let the number be x. Then 60% of 3/5 of x = 36 => 60/100 x 3/5x x = 36 => x = ( 36 x 25/9 ) = 100
229. On multiplying a number by 7, the product is a number each of whose digits is 3. The smallest such number is: SHOW ANSWER
Correct Ans:47619 Explanation: By hit and trial, we find that 47619 x 7 = 333333.
230. In a division sum, the remainder is 0. As student mistook the divisor by 12 instead of 21 and obtained 35 as quotient. What is the correct quotient ? SHOW ANSWER
Correct Ans:20 Explanation: Number = (12 x 35)
231. 9548 + 7314 = 8362 + (?) SHOW ANSWER
Correct Ans:8500 Explanation: 9548 16862 = 8362 + x + 7314 x = 16862 - 8362 ----- = 8500 16862 -----
232. If x and y are positive integers such that (3x + 7y) is a multiple of 11, then which of the following will be divisible by 11 ? SHOW ANSWER
Correct Ans:4x - 9y Explanation: By hit and trial, we put x = 5 and y = 1 so that (3x + 7y) = (3 x 5 + 7 x 1) = 22, which is divisible by 11. Therefore, (4x + 6y) = ( 4 x 5 + 6 x 1) = 26, which is not divisible by 11; (x + y + 4 ) = (5 + 1 + 4) = 10, which is not divisible by 11; (9x + 4y) = (9 x 5 + 4 x 1) = 49, which is not divisible by 11; (4x - 9y) = (4 x 5 - 9 x 1) = 11, which is divisible by 11.
233. The largest 5 digit number exactly divisible by 91 is: SHOW ANSWER
Correct Ans:99918 Explanation: The largest 5 digit number is 99999 On dividing 99999 by 91, we get => Quotient =1098 => Remainder = 81 So, 99999 – 81 = 99918 Thus the largest 5-digit number exactly divisible by 91 = 99918
234. The smallest 6 digit number exactly divisible by 111 is: SHOW ANSWER
Correct Ans:100011 Explanation: The smallest 6-digit number 100000.
235. Which one of the following is a prime number ? SHOW ANSWER
Correct Ans:373 Explanation: 437 > 22 All prime numbers less than 22 are : 2, 3, 5, 7, 11, 13, 17, 19. 161 is divisible by 7, and 221 is divisible by 13. 373 is not divisible by any of the above prime numbers. 373 is prime number. SHOW ANSWER
Correct Ans:3625216 Explanation: 1904 x 1904 = (1904)^2 = (1900 + 4)^2 = (1900)^2 + (4)^2 + (2 x 1900 x 4) = 3610000 + 16 + 15200. = 3625216.
237. (51+ 52 + 53 + ... + 100) = ? SHOW ANSWER
Correct Ans:3775 Explanation: This is an A.P. in which a = 51, l = 100 and n = 50.
238. If a and b are odd numbers, then which of the following is even ? SHOW ANSWER
Correct Ans:a + b Explanation: The sum of two odd number is even. So, a + b is even.
239. The difference between the place value and the face value of 6 in the numeral 856973 is SHOW ANSWER
Correct Ans:5994 Explanation: (Place value of 6) - (Face value of 6) = (6000 - 6) = 5994
240. The sum all even natural numbers between 1 and 31 is: SHOW ANSWER
Correct Ans:240 Explanation: Required sum = (2 + 4 + 6 + ... + 30) Are you seeking for good platform for practicing Number System questions in online. This is the right place. The time you spent in Fresherslive will be the most beneficial one for you. This page provides important questions on Number System along with correct answers and clear explanation, which will be very useful for various Interviews, Competitive examinations and Entrance tests. Here, Most of the Number System questions are framed with Latest concepts, so that you may get updated through these Number System Online tests. Number System Online Test questions are granted from basic level to complex level. Number System questions are delivered with accurate answer. For solving each and every question, very lucid explanations are provided with diagrams wherever necessary. Practice in advance of similar questions on Number System may improve your performance in the real Exams and Interview. Time Management for answering the Number System questions quickly is foremost important for success in Competitive Exams and Placement Interviews. Through Fresherslive Number System questions and answers, you can acquire all the essential idea to solve any difficult questions on Number System in short time and also in short cut method. Winners are those who can use the simplest method for solving a question. So that they have enough time for solving all the questions in examination, correctly without any tense. Fresherslive provides most simplest methods to answer any tough questions. Practise through Fresherslive test series to ensure success in all competitive exams, entrance exams and placement tests. Most of the job seekers finding it hard to clear Number System test or get stuck on any particular question, our Number System test sections will help you to success in Exams as well as Interviews. To acquire clear understanding of Number System, exercise these advanced Number System questions with answers. You're Welcome to use the Fresherslive Online Test at any time you want. Start your beginning, of anything you want by using our sample Number System Online Test and create yourself a successful one. Fresherslive provides you a new opportunity to improve yourself. Take it and make use of it to the fullest. GOODLUCK for Your Bright Future. Page 13Number System Questions: Solved 444 Number System Questions and answers section with explanation for various online exam preparation, various interviews, Aptitude Category online test. Category Questions section with detailed description, explanation will help you to master the topic.
241. Which one of the following is a prime number ? SHOW ANSWER
Correct Ans:None of these Explanation: Sqrt(551) > 22 All prime numbers less than 24 are : 2, 3, 5, 7, 11, 13, 17, 19, 23. 119 is divisible by 7; 187 is divisible by 11; 247 is divisible by 13 and 551 is divisible by 19. So, none of the given numbers is prime.
242. The difference of the squares of two consecutive even integers is divisible by which of the following integers? SHOW ANSWER
Correct Ans:4 Explanation: Let the two consecutive even integers be 2n and (2n + 2). Then the difference of squares of these two consecutive even integers = (2n + 2)^2 – (2n)^2 = (2n)^2 + 8n + 4 – (2n)^2 = 8n + 4 = 4(2n + 1) => which is divisible by 4
243. A number when divided by 6 leaves a remainder 3. When the square of the number is divided by 6, the remainder is: SHOW ANSWER
Correct Ans:3 Explanation: Let x = 6q + 3. Then, x^2 = (6q + 3)^2 = 36q2 + 36q + 9 = 6(6q2 + 6q + 1) + 3 Thus, when x2 is divided by 6, then remainder = 3.
244. Which one of the following numbers is completely divisible by 45 ? SHOW ANSWER
Correct Ans:202860 Explanation: 45 = 5 x 9, where 5 and 9 are co-primes. Unit digit must be 0 or 5 and sum of digits must be divisible by 9. Among given numbers, such number is 202860.
245. (x^n - a^n) is completely divisible by (x - a),when SHOW ANSWER
Correct Ans:n is any natural number Explanation: For every natural number n, (x^n - a^n) is completely divisible by (x - a).
246. (35423 + 7164 + 41720) - (317 x 89) = ? SHOW ANSWER
Correct Ans:56094 Explanation: 35423 317 x 89 = 317 x (90 -1 ) + 7164 = (317 x 90 - 317) + 41720 = (28530 - 317) ----- = 28213 84307 - 28213 ----- 56094 -----
247. 397 x 397 + 104 x 104 + 2 x 397 x 104 = ? SHOW ANSWER
Correct Ans:251001 Explanation: Given Exp. = (397)^2 + (104)^2 + 2 x 397 x 104 = (397 + 104)^2 = (501)2 = (500 + 1)^2 = (500^2) + (1)^2 + (2 x 500 x 1) = 250000 + 1 + 1000 = 251001
248. n is a whole number which when divided by 4 gives 3 as remainder. What will be the remainder when 2n is divided by 4 ? SHOW ANSWER
Correct Ans:2 Explanation: Let n = 4q + 3. Then 2n = 8q + 6 = 4(2q + 1 ) + 2. Thus, when 2n is divided by 4, the remainder is 2.
249. (4300731) - ? = 2535618 SHOW ANSWER
Correct Ans:1765113 Explanation: Let 4300731 - x = 2535618 Then x, = 4300731 - 2535618 = 1765113
250. Which natural number is nearest to 9217, which is completely divisible by 88 ? SHOW ANSWER
Correct Ans:9240 Explanation: On dividing we get,
251. Which of the following numbers is divisible by each one of 3, 7, 9 and 11 ? SHOW ANSWER
Correct Ans:2079 Explanation: Given 639 is not divisible by 7 2079 is divisible by each of 3, 7, 9, 11. So, 2079 is a correct answer.
252. If the number 42573 * is exactly divisible by 72, then the minimum value of * is: SHOW ANSWER
Correct Ans:6 Explanation: 72 = 9 x8, where 9 and 8 are co-prime. The minimum value of x for which 73x for which 73x is divisible by 8 is, x = 6. Sum of digits in 425736 = (4 + 2 + 5 + 7 + 3 + 6) = 27, which is divisible by 9. Required value of * is 6.
253. Which natural number is nearest to 8485, which is completely divisible by 75 ? SHOW ANSWER
Correct Ans:8475 Explanation: On dividing, we get
254. (800 / 64) x (1296 /36) = ? SHOW ANSWER
Correct Ans:450 Explanation: (800 ÷ 64) x (1296 ÷36) = 12.5 * 36 = 450
255. How many prime numbers are less than 50 ? SHOW ANSWER
Correct Ans:15 Explanation: Prime numbers less than 50 are: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47 Their number is 15
256. A boy multiplied 987 by a certain number and obtained 559981 as his answer. If in the answer both 9 are wrong and the other digits are correct, then the correct answer would be: SHOW ANSWER
Correct Ans:555681 Explanation: 987 = 3 x 7 x 47 So, the required number must be divisible by each one of 3, 7, 47 553681 (Sum of digits = 28, not divisible by 3) 555181 (Sum of digits = 25, not divisible by 3) 555681 is divisible by 3, 7, 47.
257. On dividing 2272 as well as 875 by 3-digit number N, we get the same remainder. The sum of the digits of N is SHOW ANSWER
Correct Ans:10 Explanation: Clearly, (2272 - 875) = 1397, is exactly divisible by N. Now, 1397 = 11 x 127 The required 3-digit number is 127, the sum of whose digits is 10.
258. If the number 5 * 2 is divisible by 6, then * = ? SHOW ANSWER
Correct Ans:2 Explanation: 6 = 3 x 2. Clearly, 5 * 2 is divisible by 2. Replace * by x. Then, (5 + x + 2) must be divisible by 3. So, x = 2.
259. If the number 97215 * 6 is completely divisible by 11, then the smallest whole number in place of * will be: SHOW ANSWER
Correct Ans:3 Explanation: Given number = 97215x6 (6 + 5 + 2 + 9) - (x + 1 + 7) = (14 - x), which must be divisible by 11. x = 3
260. 476 ** 0 is divisible by both 3 and 11. The non-zero digits in the hundred's and ten's places are respectively: SHOW ANSWER
Correct Ans:8 and 5 Explanation: Let the given number be 476 xy 0. Then (4 + 7 + 6 + x + y + 0) = (17 + x + y) must be divisible by 3. And, (0 + x + 7) - (y + 6 + 4) = (x - y -3) must be either 0 or 11. x - y - 3 = 0 y = x - 3 (17 + x + y) = (17 + x + x - 3) = (2x + 14) x= 2 or x = 8. Therefore, x = 8 and y = 5. Are you seeking for good platform for practicing Number System questions in online. This is the right place. The time you spent in Fresherslive will be the most beneficial one for you. This page provides important questions on Number System along with correct answers and clear explanation, which will be very useful for various Interviews, Competitive examinations and Entrance tests. Here, Most of the Number System questions are framed with Latest concepts, so that you may get updated through these Number System Online tests. Number System Online Test questions are granted from basic level to complex level. Number System questions are delivered with accurate answer. For solving each and every question, very lucid explanations are provided with diagrams wherever necessary. Practice in advance of similar questions on Number System may improve your performance in the real Exams and Interview. Time Management for answering the Number System questions quickly is foremost important for success in Competitive Exams and Placement Interviews. Through Fresherslive Number System questions and answers, you can acquire all the essential idea to solve any difficult questions on Number System in short time and also in short cut method. Winners are those who can use the simplest method for solving a question. So that they have enough time for solving all the questions in examination, correctly without any tense. Fresherslive provides most simplest methods to answer any tough questions. Practise through Fresherslive test series to ensure success in all competitive exams, entrance exams and placement tests. Most of the job seekers finding it hard to clear Number System test or get stuck on any particular question, our Number System test sections will help you to success in Exams as well as Interviews. To acquire clear understanding of Number System, exercise these advanced Number System questions with answers. You're Welcome to use the Fresherslive Online Test at any time you want. Start your beginning, of anything you want by using our sample Number System Online Test and create yourself a successful one. Fresherslive provides you a new opportunity to improve yourself. Take it and make use of it to the fullest. GOODLUCK for Your Bright Future. Page 14Number System Questions: Solved 444 Number System Questions and answers section with explanation for various online exam preparation, various interviews, Aptitude Category online test. Category Questions section with detailed description, explanation will help you to master the topic.
261. What least number must be subtracted from 13601, so that the remainder is divisible by 87 ? SHOW ANSWER
Correct Ans:29 Explanation: 13601 = 87 x 156 + 29 Here 29 is the remainder.
262. In a division sum, the divisor is 10 times the quotient and 5 times the remainder. If the remainder is 46, what is the dividend ? SHOW ANSWER
Correct Ans:5336 Explanation: Divisor = (5 x 46) = 230
263. A number when divided by 296 leaves 75 as remainder. When the same number is divided by 37, the remainder will be: SHOW ANSWER
Correct Ans:1 Explanation: Let x = 296q + 75 = (37 x 8q + 37 x 2) + 1 = 37 (8q + 2) + 1 Thus, when the number is divided by 37, the remainder is 1. SHOW ANSWER
Correct Ans:-2071 Explanation: Given Exp. = -84 x (30 - 1) + 365 = -(84 x 30) + 84 + 365 = -2520 + 449 = -2071
265. If the product 4864 x 9 P 2 is divisible by 12, then the value of P is: SHOW ANSWER
Correct Ans:None of these Explanation: Clearly, 4864 is divisible by 4. So, 9P2 must be divisible by 3. So, (9 + P + 2) must be divisible by 3. P = 1.
266. On dividing a number by 357, we get 39 as remainder. On dividing the same number 17, what will be the remainder? SHOW ANSWER
Correct Ans:5 Explanation: Let x be the number and y be the quotient. Then, x = 357 xy + 39 = (17 x 21 xy) + (17 x 2) + 5 = 17 x (21y + 2) + 5) Required remainder = 5.
267. The smallest prime number is: SHOW ANSWER
Correct Ans:2 Explanation: The smallest prime number is 2.
268. 8597 - ? = 7429 - 4358 SHOW ANSWER
Correct Ans:5526 Explanation: 7429 Let 8597 - x = 3071 -4358 Then, x = 8597 - 3071 ---- = 5526 3071 ----
269. How many 3 digit numbers are divisible by 6 in all? SHOW ANSWER
Correct Ans:150 Explanation: Required numbers are 102, 108, 114, ... , 996 This is an A.P. in which a1 = 102, d = 6 and l = an = 996 Let the number of terms be n.an= a1+ (n – 1)d Then, a1+ (n – 1)d = 996 => 102 + (n - 1) x 6 = 996 => (n - 1) x 6 = 996 - 102 =>6 x (n - 1) = 894 =>(n - 1) = 149 => n = 150.
270. How many natural numbers are there between 23 and 100 which are exactly divisible by 6 ? SHOW ANSWER
Correct Ans:13 Explanation: Required numbers are 24, 30, 36, 42, ..., 96 This is an A.P. in which a = 24, d = 6 and l = 96 Let the number of terms in it be n. Then tn = 96 a + (n - 1)d = 96 24 + (n - 1) x 6 = 96 (n - 1) x 6 = 72 (n - 1) = 12 n = 13 Required number of numbers = 13.
271. How many 3-digit numbers are completely divisible 6 ? SHOW ANSWER
Correct Ans:150 Explanation: 3-digit number divisible by 6 are: 102, 108, 114,... , 996 This is an A.P. in which a = 102, d = 6 and l = 996 Let the number of terms be n. Then tn = 996. Therefore, a + (n - 1)d = 996 => 102 + (n - 1) x 6 = 996 => 6 x (n - 1) = 894 => (n - 1) = 149 n = 150 Therefore Number of terms = 150.
272. On dividing a number by 5, we get 3 as remainder. What will the remainder when the square of the number is divided by 5 SHOW ANSWER
Correct Ans:4 Explanation: Let the number be x and on dividing x by 5, we get k as quotient and 3 as remainder. x = 5k + 3 x^2 = (5k + 3)^2 = (25k^2 + 30k + 9) = 5(5k ^2 + 6k + 1) + 4 On dividing x^2 by 5, we get 4 as remainder.
273. On dividing a number by 56, we get 29 as remainder. On dividing the same number by 8, what will be the remainder ? SHOW ANSWER
Correct Ans:5 Explanation: Formula: (Divisor*Quotient) + Remainder = Dividend. Soln: (56*Q)+29 = D -------(1) D%8 = R -------------(2) From equation(2), ((56*Q)+29)%8 = R. => Assume Q = 1. => (56+29)%8 = R. => 85%8 = R => 5 = R.
274. The difference between the local value and the face value of 7 in the numeral 32675149 is SHOW ANSWER
Correct Ans:69993 Explanation: (Local value of 7) - (Face value of 7) = (70000 - 7) = 69993
275. If the number 481 * 673 is completely divisible by 9, then the smallest whole number in place of * will be: SHOW ANSWER
Correct Ans:7 Explanation: Sum of digits = (4 + 8 + 1 + x + 6 + 7 + 3) = (29 + x), which must be divisible by 9. x = 7
276. (?) + 3699 + 1985 - 2047 = 31111 SHOW ANSWER
Correct Ans:27474 Explanation: x + 3699 + 1985 - 2047 = 31111 => x + 3699 + 1985 = 31111 + 2047 => x + 5684 = 33158 => x = 33158 - 5684 = 27474.
277. Which of the following number is divisible by 24 ? SHOW ANSWER
Correct Ans:3125736 Explanation: 24 = 3 x8, where 3 and 8 co-prime. Clearly, 35718 is not divisible by 8, as 718 is not divisible by 8. Similarly, 63810 is not divisible by 8 and 537804 is not divisible by 8. Consider option (D), Sum of digits = (3 + 1 + 2 + 5 + 7 + 3 + 6) = 27, which is divisible by 3. Also, 736 is divisible by 8. 3125736 is divisible by (3 x 8), i.e., 24.
278. (?) - 19657 - 33994 = 9999 SHOW ANSWER
Correct Ans:63650 Explanation: 19657 Let x - 53651 = 9999 33994 Then, x = 9999 + 53651 = 63650 ----- 53651 -----
279. Which one of the following numbers is exactly divisible by 11? SHOW ANSWER
Correct Ans:415624 Explanation: (4 + 5 + 2) - (1 + 6 + 3) = 1, not divisible by 11. (2 + 6 + 4) - (4 + 5 + 2) = 1, not divisible by 11. (4 + 6 + 1) - (2 + 5 + 3) = 1, not divisible by 11. (4 + 6 + 1) - (2 + 5 + 4) = 0, So, 415624 is divisible by 11.
280. The smallest 3 digit prime number is: SHOW ANSWER
Correct Ans:101 Explanation: The smallest 3-digit number is 100, which is divisible by 2. Therefore, 100 is not a prime number. ? 101 < 11 and 101 is not divisible by any of the prime numbers 2, 3, 5, 7, 11. 101 is a prime number. Hence 101 is the smallest 3-digit prime number. Are you seeking for good platform for practicing Number System questions in online. This is the right place. The time you spent in Fresherslive will be the most beneficial one for you. This page provides important questions on Number System along with correct answers and clear explanation, which will be very useful for various Interviews, Competitive examinations and Entrance tests. Here, Most of the Number System questions are framed with Latest concepts, so that you may get updated through these Number System Online tests. Number System Online Test questions are granted from basic level to complex level. Number System questions are delivered with accurate answer. For solving each and every question, very lucid explanations are provided with diagrams wherever necessary. Practice in advance of similar questions on Number System may improve your performance in the real Exams and Interview. Time Management for answering the Number System questions quickly is foremost important for success in Competitive Exams and Placement Interviews. Through Fresherslive Number System questions and answers, you can acquire all the essential idea to solve any difficult questions on Number System in short time and also in short cut method. Winners are those who can use the simplest method for solving a question. So that they have enough time for solving all the questions in examination, correctly without any tense. Fresherslive provides most simplest methods to answer any tough questions. Practise through Fresherslive test series to ensure success in all competitive exams, entrance exams and placement tests. Most of the job seekers finding it hard to clear Number System test or get stuck on any particular question, our Number System test sections will help you to success in Exams as well as Interviews. To acquire clear understanding of Number System, exercise these advanced Number System questions with answers. You're Welcome to use the Fresherslive Online Test at any time you want. Start your beginning, of anything you want by using our sample Number System Online Test and create yourself a successful one. Fresherslive provides you a new opportunity to improve yourself. Take it and make use of it to the fullest. GOODLUCK for Your Bright Future. Page 15Number System Questions: Solved 444 Number System Questions and answers section with explanation for various online exam preparation, various interviews, Aptitude Category online test. Category Questions section with detailed description, explanation will help you to master the topic.
281. If the number 517*324 is completely divisible by 3, then the smallest whole number in the place of * will be: SHOW ANSWER
Correct Ans:2 Explanation: Sum of digits = (5 + 1 + 7 + x + 3 + 2 + 4) = (22 + x), which must be divisible by 3. x = 2. SHOW ANSWER
Correct Ans:725117481 Explanation: 72519 x 9999 = 72519 x (10000 - 1) = 72519 x 10000 - 72519 x 1 = 725190000 - 72519 = 725117481.
283. The difference of two numbers is 1365. On dividing the larger number by the smaller, we get 6 as quotient and the 15 as remainder. What is the smaller number ? SHOW ANSWER
Correct Ans:270 Explanation: Let the smaller number be x. Given, larger number - smaller number = 1365 Then, larger number = (x + 1365) Therefore, x + 1365 = 6x + 15 => 5x = 1350 => x = 270 Hence, smaller number = 270.
284. The sum of first five prime numbers is: SHOW ANSWER
Correct Ans:28 Explanation: Required sum = (2 + 3 + 5 + 7 + 11) = 28. Note: 1 is not a prime number. (Definition: A prime number (or a prime) is a natural number that has exactly two distinct natural number divisors: 1 and itself.)
285. √((27 / 5 x ?) / 15) = 5.4/6 + 0.3 SHOW ANSWER
Correct Ans:4 Explanation: Explanation: √((27 / 5 x X) / 15) = 5.4/6 + 0.3 (3/5) √ X = 1.2 √ X = 6/3 = 2 X = 4
286. Which of the following is a prime number ? SHOW ANSWER
Correct Ans:97 Explanation: Clearly, 97 is a prime number.
287. The largest 4 digit number exactly divisible by 88 is: SHOW ANSWER
Correct Ans:9944 Explanation: Largest 4-digit number = 9999 On dividing 9999 by 88, we get => Quotient =113 => Remainder = 55 So, 9999 – 55 = 9944 Thus the largest 4-digit number exactly divisible by 88 = 9944 SHOW ANSWER
Correct Ans:1951609 Explanation: 1397 x 1397 = (1397) ^2 = (1400 - 3) ^ 2 = (1400) ^ 2 + (3) ^ 2 - (2 x 1400 x 3) = 1960000 + 9 - 8400 = 1960009 - 8400 = 1951609.
289. What least number must be added to 1056, so that the sum is completely divisible by 23 ? SHOW ANSWER
Correct Ans:2 Explanation: 23) 1056 (45
92
---
136
115
---
21
--- SHOW ANSWER
Correct Ans:70000 Explanation: (112 x 5^4) = 112 x ( 10/2 ) ^4 = 112 x 10^4 / 2^4 = 1120000 / 16 = 70000
291. Which one of the following is not a prime number? SHOW ANSWER
Correct Ans:91 Explanation: 91 is divisible by 7. So, it is not a prime number.
292. The difference between a two-digit number and the number obtained by interchanging the digit is 27. Find the difference between the digits. SHOW ANSWER
Correct Ans:3 Explanation: Let the tens and unit digits be x and y respectively. Then, two digit number be 10x + y The number obtained by interchanging the digit is 10y + x Given, (10x + y) - (10y + x) = 27 => 10x + y – 10y – x = 27 => 9x – 9y = 27 => 9 (x - y) = 27=> x – y = 3 Therefore, difference between the digits = 3
293. What is the value of M and N respectively? If M39048458N is divisible by 8 and 11; where M and N are single digit integers? SHOW ANSWER
Correct Ans:6, 4 Explanation: Test of Divisibility by 8: If the last three digits of a number are divisible by 8, then the number is divisible by 8. Here, last three digits 58N are divisible by 8 if N = 4 because 584 is divisible by 8. Test of Divisibility by 11If the digits at odd and even places of a given number are equal or differ by a number divisible by 11, then the given number is divisible by 11. Therefore, (M + 9 + 4 + 4 + 8) - (3 + 0 + 8 + 5 + N) = (M + 5) should be divisible by 11; this condition is satisfied when M = 6.
294. Anita had to do a multiplication. Instead of taking 35 as one of the multipliers, she took 53. As a result, the product went up by 540. What is the new product? SHOW ANSWER
Correct Ans:1590 Explanation: Let the number that Anita wanted to multiply be x. She was expected to find the value of 35x. Instead, she found the value of 53x. The difference between the value that she got (53x) and what she was expected to get (35x) is 540. i.e., 53x – 35x = 540 => or (53 - 35) * x = 540 => x = 30 Therefore, the correct product = 53 * 30 = 1590
295. Let N be the sum of first 100 natural numbers, then N is divisible by SHOW ANSWER
Correct Ans:2 Explanation: N= 1 + 2 + … + 100 = 100 x (101/2) = 50 x 101 => N is divisible by 2 only
296. Find the greatest five digit number that is exactly divisible by 7, 10, 15, 21 and 28 SHOW ANSWER
Correct Ans:99960 Explanation: The number should be divisible by 10 (2, 5), 15 (3, 5), 21 (3, 7), and 28 (4, 7). Hence, it is enough to check whether the number is divisible by 3, 4, 5 and 7. Test of divisibility by 3: Sum of the digits will be divisible by 3 if a number is divisible by 3. Test of divisibility by 4: The rightmost two digits viz., the units and tens digits will be divisible by 4 if a number is divisible by 4. For e.g, 1232 is divisible by 4 because 32 is divisible by 4. Test of divisibility by 5: The unit’s digit is either 5 or 0. 99960 is the only number which is divisible by 3, 4, 5 and 7.
297. When a number is divided by 36, it leaves a remainder of 19. What will be the remainder when the number is divided by 12? SHOW ANSWER
Correct Ans:7 Explanation: Let the number be 'a'. When 'a' is divided by 36, let the quotient be 'q' and we know the remainder is 19. i.e., and remainder is 19 or a = 36q + 19 when 'a' is divided by 12, we get or . 36q is divisible by 12. Therefore, remainder = 7
298. Evaluate: 1.002 x 1.002 x 1.002 + 0.998 x 0.998 x 0.998 + 6 x 0.998 x 1.002 SHOW ANSWER
Correct Ans:8 Explanation: We know that (a+b)3 = a3 + b3 + 3ab(a+b)
299. If 1/8 of 2/3 of 4/5 of a number is 12. Find the number. SHOW ANSWER
Correct Ans:180 Explanation: Let k be the number then 1/8 x 2/3 x 4/5 x k = 12 => k/15 = 12 => k = 180
300. Let N = 55^3 + 17^3 - 72^3. N is divisible by SHOW ANSWER
Correct Ans:Both 3 and 17 Explanation: We know that if a + b + c = 0 then a3+ b3+ c3 = 3 x a x b x c 553 + 173 � 723= 3 x 55 x 17 x 72, it is clear that the answer is not a multiple of 13 or 7. Are you seeking for good platform for practicing Number System questions in online. This is the right place. The time you spent in Fresherslive will be the most beneficial one for you. This page provides important questions on Number System along with correct answers and clear explanation, which will be very useful for various Interviews, Competitive examinations and Entrance tests. Here, Most of the Number System questions are framed with Latest concepts, so that you may get updated through these Number System Online tests. Number System Online Test questions are granted from basic level to complex level. Number System questions are delivered with accurate answer. For solving each and every question, very lucid explanations are provided with diagrams wherever necessary. Practice in advance of similar questions on Number System may improve your performance in the real Exams and Interview. Time Management for answering the Number System questions quickly is foremost important for success in Competitive Exams and Placement Interviews. Through Fresherslive Number System questions and answers, you can acquire all the essential idea to solve any difficult questions on Number System in short time and also in short cut method. Winners are those who can use the simplest method for solving a question. So that they have enough time for solving all the questions in examination, correctly without any tense. Fresherslive provides most simplest methods to answer any tough questions. Practise through Fresherslive test series to ensure success in all competitive exams, entrance exams and placement tests. Most of the job seekers finding it hard to clear Number System test or get stuck on any particular question, our Number System test sections will help you to success in Exams as well as Interviews. To acquire clear understanding of Number System, exercise these advanced Number System questions with answers. You're Welcome to use the Fresherslive Online Test at any time you want. Start your beginning, of anything you want by using our sample Number System Online Test and create yourself a successful one. Fresherslive provides you a new opportunity to improve yourself. Take it and make use of it to the fullest. GOODLUCK for Your Bright Future. Page 16Number System Questions: Solved 444 Number System Questions and answers section with explanation for various online exam preparation, various interviews, Aptitude Category online test. Category Questions section with detailed description, explanation will help you to master the topic.
301. The integers 32489 and 33714, when divided by a three digit number "n", leave the same remainder. What is the value of "n"? SHOW ANSWER
Correct Ans:245 Explanation: Given two numbers 32489 and 33714. Let r be the remainder we get, when we divide these both numbers by n, then 32489 = qn + r and 33714 = pn + r, Where p and q are some integers. Subtracting these two equations, we get 1225 = (p-q) x n. We can write 1225 as 5 x 245. Hence 245 is the answer.
302. Find the number of factors of 360 SHOW ANSWER
Correct Ans:24 Explanation: Prime factorization of 360 = 2^3 x 3^2 x 5^1 Number of factors = (3+1) x (2+1) x (1+1) = 4 x 3 x 2 = 24
303. Find the sum of first 200 natural numbers. SHOW ANSWER
Correct Ans:20,100 Explanation: Sum of first 200 natural numbers = 1+ 2+ 3+ …+200 = 200 x (201/2) = 201 * 100 = 20,100
304. The sum of the digits of a 3 – digit number is subtracted from the number. The resulting number is always __________. SHOW ANSWER
Correct Ans:Divisible by 9 Explanation: Let the three digit number be xyz, then xyz = 100x + 10y + z. Sum of all the digits is x + y + z. Subtracting the sum of the digits from 100x + 10y + z, we get 100x + 10y + z - (x+y+z) = 99 x + 9y = 9 x (11x +y), which is multiple of 9. Thus, the resulting number is always divisible by 9
305. Find the greatest number of 5 digits which is exactly divisible by 265. SHOW ANSWER
Correct Ans:99905 Explanation: Greatest number of 5 digits is 99,999. If we divide this number 265, we get quotient 377 and remainder 94. If we subtract the number 94 from 99,999 then the resulting number will be perfectly divisible by 265. Answer is 99,999 – 94 = 99,905
306. A number when divided by 216 leaves remainder 36 and the value of the quotient is 11. Find the number. SHOW ANSWER
Correct Ans:2412 Explanation: Number = Divisor x Quotient + Remainder = 216 x 11 + 36 = 2376 + 36 = 2412
307. On dividing 225636 by a certain number, the quotient is 68 and the remainder is 420. Find the divisor. SHOW ANSWER
Correct Ans:3312 Explanation: Divisor = (Dividend - Remainder) / Quotient
308. Evaluate: 432 x 637 + 367 x 432 =? SHOW ANSWER
Correct Ans:432000 Explanation: 432 x 637 + 363 x 432 =432 x ( 637 + 363) = 432 x 1000 = 432000
309. Find the unit digit in the expansion of the number 7^28 SHOW ANSWER
Correct Ans:1 Explanation: 74k will always end with 1, 728, 28 being multiple of 4, the unit digit will be 1.
310. The remainder obtained when 2^99 is divided by 7 is ____ SHOW ANSWER
Correct Ans:1 Explanation: The number 2^99 = 8^33 When we divided 8 by 7, the remainder is 1, 8 to the power any number we divide the result by 7, the remainder is always 1. (You can try this, for example 82 = 64, divide 64 by 7, remainder is 1).Hence, 1 is the remainder.
311. The number of factors for the number 120 is ______ SHOW ANSWER
Correct Ans:16 Explanation: The number of factors will be (3+1) x (1+1) x (1+1) = 4 x 2 x 2 = 16 Hence there are 16 factors.
312. Find the HCF of 59 , 14? SHOW ANSWER
Correct Ans:1 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
313. Find the LCM of 42 , 30? SHOW ANSWER
Correct Ans:210 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
314. What number should come next ? 173, 196, 219, 242, _____ SHOW ANSWER
Correct Ans:265 Explanation: The given series is -- 173, 196, 219, 242Consequtive numbers increases by 23Following this pattern, the Missing Number should increase by 23 from the previous number. When we add 23 to the last number (i.e 242) we get 242+23=265
315. What should come in place of _____ in the below number series? 173, 149, 125, 101, _____ SHOW ANSWER
Correct Ans:77 Explanation: The given series is -- 173, 149, 125, 101Consequtive numbers decreases by 24Following this pattern, the Missing Number should decrease by 24 from the previous number. When we subract 24 to the last number (i.e 101) we get 101- 24 = 77
316. Find the HCF of 59 , 12? SHOW ANSWER
Correct Ans:1 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
317. Find the LCM of 42 , 20? SHOW ANSWER
Correct Ans:420 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
318. In the below given sequence, what should be the next number ? 173, 195, 217, 239, _____ SHOW ANSWER
Correct Ans:261 Explanation: The given series is -- 173, 195, 217, 239Consequtive numbers increases by 22Following this pattern, the Missing Number should increase by 22 from the previous number. When we add 22 to the last number (i.e 239) we get 239+22=261
319. Output of a particular program follows the below pattern. Can you find the next number ? 173, 151, 129, 107, _____ SHOW ANSWER
Correct Ans:85 Explanation: The given series is -- 173, 151, 129, 107Consequtive numbers decreases by 22Following this pattern, the Missing Number should decrease by 22 from the previous number. When we subract 22 to the last number (i.e 107) we get 107-22 = 85
320. Find the HCF of 59 , 10? SHOW ANSWER
Correct Ans:1 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers. Are you seeking for good platform for practicing Number System questions in online. This is the right place. The time you spent in Fresherslive will be the most beneficial one for you. This page provides important questions on Number System along with correct answers and clear explanation, which will be very useful for various Interviews, Competitive examinations and Entrance tests. Here, Most of the Number System questions are framed with Latest concepts, so that you may get updated through these Number System Online tests. Number System Online Test questions are granted from basic level to complex level. Number System questions are delivered with accurate answer. For solving each and every question, very lucid explanations are provided with diagrams wherever necessary. Practice in advance of similar questions on Number System may improve your performance in the real Exams and Interview. Time Management for answering the Number System questions quickly is foremost important for success in Competitive Exams and Placement Interviews. Through Fresherslive Number System questions and answers, you can acquire all the essential idea to solve any difficult questions on Number System in short time and also in short cut method. Winners are those who can use the simplest method for solving a question. So that they have enough time for solving all the questions in examination, correctly without any tense. Fresherslive provides most simplest methods to answer any tough questions. Practise through Fresherslive test series to ensure success in all competitive exams, entrance exams and placement tests. Most of the job seekers finding it hard to clear Number System test or get stuck on any particular question, our Number System test sections will help you to success in Exams as well as Interviews. To acquire clear understanding of Number System, exercise these advanced Number System questions with answers. You're Welcome to use the Fresherslive Online Test at any time you want. Start your beginning, of anything you want by using our sample Number System Online Test and create yourself a successful one. Fresherslive provides you a new opportunity to improve yourself. Take it and make use of it to the fullest. GOODLUCK for Your Bright Future. Page 17Number System Questions: Solved 444 Number System Questions and answers section with explanation for various online exam preparation, various interviews, Aptitude Category online test. Category Questions section with detailed description, explanation will help you to master the topic.
321. Find the LCM of 42 , 24? SHOW ANSWER
Correct Ans:168 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
322. A Computer program gave the following output. Can you predict the next number that the computer program would generate as output ? 173, 188, 203, 218, _____ SHOW ANSWER
Correct Ans:233 Explanation: The given series is -- 173, 188, 203, 218Consequtive numbers increases by 15Following this pattern, the Missing Number should increase by 15 from the previous number. When we add 15 to the last number (i.e 218) we get 218+15=233
323. A professor wrote the below series in class room. He wants his students to find the next number. Can you solve it for the professor? 173, 152, 131, 110, _____ SHOW ANSWER
Correct Ans:89 Explanation: The given series is -- 173, 152, 131, 110Consequtive numbers decreases by 21Following this pattern, the Missing Number should decrease by 21 from the previous number. When we subract 21 to the last number (i.e 110) we get 110-21=89
324. Find the HCF of 59 , 8? SHOW ANSWER
Correct Ans:1 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
325. Find the LCM of 42 , 7? SHOW ANSWER
Correct Ans:42 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
326. Below Numbers follow a particular pattern. Can you find the next number ? 173, 192, 211, 230, _____ SHOW ANSWER
Correct Ans:249 Explanation: The given series is -- 173, 192, 211, 230Consequtive numbers increases by 19Following this pattern, the Missing Number should increase by 19 from the previous number. When we add 19 to the last number (i.e 230) we get 230+19=249
327. In the given series, can you find the next number ? 173, 154, 135, 116, _____ SHOW ANSWER
Correct Ans:97 Explanation: The given series is -- 173, 154, 135, 116Consequtive numbers decreases by 19Following this pattern, the Missing Number should decrease by 19 from the previous number. When we subract 19 to the last number (i.e 116) we get 116-19= 97
328. Find the HCF of 59 , 6? SHOW ANSWER
Correct Ans:1 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
329. Find the LCM of 42 , 5? SHOW ANSWER
Correct Ans:210 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
330. Fifth number is missing in the below series. Can you find the fifth number in the below series ? 173, 190, 207, 224, _____ SHOW ANSWER
Correct Ans:241 Explanation: The given series is -- 173, 190, 207, 224 Consequtive numbers increases by 17 Following this pattern, the Missing Number should increase by 17 from the previous number. When we add 17 to the last number (i.e 224) we get 224+17=241
331. Can you find the the next number in the below series 173, 158, 143, 128, _____ SHOW ANSWER
Correct Ans:113 Explanation: The given series is -- 173, 158, 143, 128 Consequtive numbers decreases by 15 Following this pattern, the Missing Number should decrease by 15 from the previous number. When we subract 15 to the last number (i.e 128) we get 128--15=113
332. Find the HCF of 59 , 22? SHOW ANSWER
Correct Ans:1 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
333. Find the LCM of 42 , 3? SHOW ANSWER
Correct Ans:42 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
334. Fourth number is missing in the below series. Can you find the Fourth number in the below series ? 133, 156, 179, X , 225, 248 SHOW ANSWER
Correct Ans:202 Explanation: The given series is -- 133, 156, 179, X , 225, 248Consequtive numbers increases by 23Following this pattern, the Missing Number X should increase by 23 from the previous number. When we add 23 to the number before X (i.e 179) we get 179+23=202
335. Find the HCF of 12 , 14? SHOW ANSWER
Correct Ans:2 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
336. Find the LCM of 25 , 30? SHOW ANSWER
Correct Ans:150 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
337. Can you find the the missing number in the below series 133, 106, 79, X , 25, -2 SHOW ANSWER
Correct Ans:52 Explanation: The given series is -- 133, 106, 79, X , 25, -2Consequtive numbers decreases by 27Following this pattern, the Missing Number X should decrease by 27 from the previous number. When we subract 27 to the number before X (i.e 79) we get 79--27=52
338. Find the HCF of 12 , 120? SHOW ANSWER
Correct Ans:12 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
339. Find the LCM of 25 , 20? SHOW ANSWER
Correct Ans:100 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
340. Find the Missing number in the the below series 133, 160, 187, X , 241, 268 SHOW ANSWER
Correct Ans:214 Explanation: The given series is -- 133, 160, 187, X , 241, 268 Consequtive numbers increases by 27 Following this pattern, the Missing Number X should increase by 27 from the previous number. When we add 27 to the number before X (i.e 187) we get 187+27=214 Are you seeking for good platform for practicing Number System questions in online. This is the right place. The time you spent in Fresherslive will be the most beneficial one for you. This page provides important questions on Number System along with correct answers and clear explanation, which will be very useful for various Interviews, Competitive examinations and Entrance tests. Here, Most of the Number System questions are framed with Latest concepts, so that you may get updated through these Number System Online tests. Number System Online Test questions are granted from basic level to complex level. Number System questions are delivered with accurate answer. For solving each and every question, very lucid explanations are provided with diagrams wherever necessary. Practice in advance of similar questions on Number System may improve your performance in the real Exams and Interview. Time Management for answering the Number System questions quickly is foremost important for success in Competitive Exams and Placement Interviews. Through Fresherslive Number System questions and answers, you can acquire all the essential idea to solve any difficult questions on Number System in short time and also in short cut method. Winners are those who can use the simplest method for solving a question. So that they have enough time for solving all the questions in examination, correctly without any tense. Fresherslive provides most simplest methods to answer any tough questions. Practise through Fresherslive test series to ensure success in all competitive exams, entrance exams and placement tests. Most of the job seekers finding it hard to clear Number System test or get stuck on any particular question, our Number System test sections will help you to success in Exams as well as Interviews. To acquire clear understanding of Number System, exercise these advanced Number System questions with answers. You're Welcome to use the Fresherslive Online Test at any time you want. Start your beginning, of anything you want by using our sample Number System Online Test and create yourself a successful one. Fresherslive provides you a new opportunity to improve yourself. Take it and make use of it to the fullest. GOODLUCK for Your Bright Future. Page 18Number System Questions: Solved 444 Number System Questions and answers section with explanation for various online exam preparation, various interviews, Aptitude Category online test. Category Questions section with detailed description, explanation will help you to master the topic.
341. Find the HCF of 12 , 10? SHOW ANSWER
Correct Ans:2 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
342. Find the LCM of 25 , 24? SHOW ANSWER
Correct Ans:600 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
343. Which number should come in place of the missing Number ? 117, 148, 179, X , 241, 272 SHOW ANSWER
Correct Ans:210 Explanation: The given series is -- 117, 148, 179, X , 241, 272Consequtive numbers increases by 31Following this pattern, the Missing Number X should increase by 31 from the previous number. When we add 31 to the number before X (i.e 179) we get 179+31=210
344. Find the HCF of 12 , 8? SHOW ANSWER
Correct Ans:4 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
345. Find the LCM of 25 , 7? SHOW ANSWER
Correct Ans:175 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
346. What should come in place of X in the below number series? 117, 88, 59, X , 1, -28 SHOW ANSWER
Correct Ans:30 Explanation: The given series is 117, 88, 59, X , 1, -28 Consequtive numbers decreases by 29 Following this pattern, the Missing Number X should decrease by 29 from the previous number. When we subract 29 to the number before X (i.e 59) we get 59 - 29 = 30
347. Find the HCF of 12 , 6? SHOW ANSWER
Correct Ans:6 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
348. Find the LCM of 25 , 5? SHOW ANSWER
Correct Ans:25 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
349. Output of a particular program follows the below pattern. Can you find the Missing number? SHOW ANSWER
Correct Ans:204 Explanation: The given series is -- 117, 146, 175, X , 233, 262 Consequtive numbers increases by 29 Following this pattern, the Missing Number X should increase by 29 from the previous number. When we add 29 to the number before X (i.e 175) we get 175+29=204
350. Find the HCF of 12 , 22? SHOW ANSWER
Correct Ans:2 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
351. Find the LCM of 25 , 3? SHOW ANSWER
Correct Ans:75 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
352. In the below given sequence, what should be the Missing number ? 117, 92, 67, X , 17, -8 SHOW ANSWER
Correct Ans:42 Explanation: The given series is -- 117, 92, 67, X , 17, -8Consequtive numbers decreases by 25Following this pattern, the Missing Number X should decrease by 25 from the previous number. When we subract 25 to the number before X (i.e 67) we get 67--25=42
353. Find the HCF of 19 , 14? SHOW ANSWER
Correct Ans:1 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
354. Find the LCM of 41 , 30? SHOW ANSWER
Correct Ans:1230 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
355. A Computer program gave the following output. Can you predict the Missing number in the computer output ? 117, 142, 167, X , 217, 242 SHOW ANSWER
Correct Ans:192 Explanation: The given series is -- 117, 142, 167, X , 217, 242 Consequtive numbers increases by 25 Following this pattern, the Missing Number X should increase by 25 from the previous number. When we add 25 to the number before X (i.e 167) we get 167+25=192
356. Find the HCF of 19 , 12? SHOW ANSWER
Correct Ans:1 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
357. Find the LCM of 41 , 20? SHOW ANSWER
Correct Ans:820 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
358. A professor wrote down the below series in a class room. He wants his students to find the Missing number. Can you solve it ? 117, 96, 75, X , 33, 12 SHOW ANSWER
Correct Ans:54 Explanation: The given series is -- 117, 96, 75, X , 33, 12Consequtive numbers decreases by 21Following this pattern, the Missing Number X should decrease by 21 from the previous number. When we subract 21 to the number before X (i.e 75) we get 75--21=54
359. Find the HCF of 19 , 10? SHOW ANSWER
Correct Ans:1 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
360. Find the LCM of 41 , 24? SHOW ANSWER
Correct Ans:984 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers. Are you seeking for good platform for practicing Number System questions in online. This is the right place. The time you spent in Fresherslive will be the most beneficial one for you. This page provides important questions on Number System along with correct answers and clear explanation, which will be very useful for various Interviews, Competitive examinations and Entrance tests. Here, Most of the Number System questions are framed with Latest concepts, so that you may get updated through these Number System Online tests. Number System Online Test questions are granted from basic level to complex level. Number System questions are delivered with accurate answer. For solving each and every question, very lucid explanations are provided with diagrams wherever necessary. Practice in advance of similar questions on Number System may improve your performance in the real Exams and Interview. Time Management for answering the Number System questions quickly is foremost important for success in Competitive Exams and Placement Interviews. Through Fresherslive Number System questions and answers, you can acquire all the essential idea to solve any difficult questions on Number System in short time and also in short cut method. Winners are those who can use the simplest method for solving a question. So that they have enough time for solving all the questions in examination, correctly without any tense. Fresherslive provides most simplest methods to answer any tough questions. Practise through Fresherslive test series to ensure success in all competitive exams, entrance exams and placement tests. Most of the job seekers finding it hard to clear Number System test or get stuck on any particular question, our Number System test sections will help you to success in Exams as well as Interviews. To acquire clear understanding of Number System, exercise these advanced Number System questions with answers. You're Welcome to use the Fresherslive Online Test at any time you want. Start your beginning, of anything you want by using our sample Number System Online Test and create yourself a successful one. Fresherslive provides you a new opportunity to improve yourself. Take it and make use of it to the fullest. GOODLUCK for Your Bright Future. Page 19Number System Questions: Solved 444 Number System Questions and answers section with explanation for various online exam preparation, various interviews, Aptitude Category online test. Category Questions section with detailed description, explanation will help you to master the topic.
361. Below Numbers follow a particular pattern. Can you find the Missing number in the below pattern? 117, 138, 159, X , 201, 222 SHOW ANSWER
Correct Ans:180 Explanation: The given series is -- 117, 138, 159, X , 201, 222Consequtive numbers increases by 21Following this pattern, the Missing Number X should increase by 21 from the previous number. When we add 21 to the number before X (i.e 159) we get 159+21=180
362. Find the HCF of 19 , 8? SHOW ANSWER
Correct Ans:1 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
363. Find the LCM of 41 , 7? SHOW ANSWER
Correct Ans:287 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
364. In the given series, can you find the Missing number ? 117, 94, 71, X , 25, 2 SHOW ANSWER
Correct Ans:48 Explanation: The given series is -- 117, 94, 71, X , 25, 2 Consequtive numbers decreases by 23 Following this pattern, the Missing Number X should decrease by 23 from the previous number. When we subract 23 to the number before X (i.e 71) we get 71--23=48
365. Find the HCF of 19 , 6? SHOW ANSWER
Correct Ans:1 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
366. Find the LCM of 41 , 5? SHOW ANSWER
Correct Ans:205 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
367. Fourth number is missing in the below series. Can you find the Fourth number in the below series ? 117, 140, 163, X , 209, 232 SHOW ANSWER
Correct Ans:186 Explanation: The given series is -- 117, 140, 163, X , 209, 232Consequtive numbers increases by 23Following this pattern, the Missing Number X should increase by 23 from the previous number. When we add 23 to the number before X (i.e 163) we get 163+23=186
368. Find the HCF of 19 , 22? SHOW ANSWER
Correct Ans:1 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
369. Find the LCM of 41 , 3? SHOW ANSWER
Correct Ans:123 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
370. Can you find the the missing number in the below series 117, 90, 63, X , 9, -18 SHOW ANSWER
Correct Ans:36 Explanation: The given series is -- 117, 90, 63, X , 9, -18Consequtive numbers decreases by 27Following this pattern, the Missing Number X should decrease by 27 from the previous number. When we subract 27 to the number before X (i.e 63) we get 63--27=36
371. Find the HCF of 36 , 14? SHOW ANSWER
Correct Ans:2 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
372. Find the LCM of 37 , 30? SHOW ANSWER
Correct Ans:1110 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
373. Find the Missing number in the the below series 117, 144, 171, X , 225, 252 SHOW ANSWER
Correct Ans:198 Explanation: The given series is -- 117, 144, 171, X , 225, 252Consequtive numbers increases by 27Following this pattern, the Missing Number X should increase by 27 from the previous number. When we add 27 to the number before X (i.e 171) we get 171+27=198
374. Find the HCF of 36 , 12? SHOW ANSWER
Correct Ans:12 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
375. Find the LCM of 37 , 20? SHOW ANSWER
Correct Ans:740 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
376. Which number should come in place of the missing Number ? 112, 143, 174, X , 236, 267 SHOW ANSWER
Correct Ans:205 Explanation: The given series is -- 112, 143, 174, X , 236, 267Consequtive numbers increases by 31Following this pattern, the Missing Number X should increase by 31 from the previous number. When we add 31 to the number before X (i.e 174) we get 174+31=205
377. Find the HCF of 36 , 10? SHOW ANSWER
Correct Ans:2 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
378. Find the LCM of 37 , 24? SHOW ANSWER
Correct Ans:888 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
379. What should come in place of X in the below number series? 112, 83, 54, X , -4, -33 SHOW ANSWER
Correct Ans:25 Explanation: The given series is -- 112, 83, 54, X , -4, -33Consequtive numbers decreases by 29Following this pattern, the Missing Number X should decrease by 29 from the previous number. When we subract 29 to the number before X (i.e 54) we get 54-29=25
380. Find the HCF of 36 , 8? SHOW ANSWER
Correct Ans:4 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers. Are you seeking for good platform for practicing Number System questions in online. This is the right place. The time you spent in Fresherslive will be the most beneficial one for you. This page provides important questions on Number System along with correct answers and clear explanation, which will be very useful for various Interviews, Competitive examinations and Entrance tests. Here, Most of the Number System questions are framed with Latest concepts, so that you may get updated through these Number System Online tests. Number System Online Test questions are granted from basic level to complex level. Number System questions are delivered with accurate answer. For solving each and every question, very lucid explanations are provided with diagrams wherever necessary. Practice in advance of similar questions on Number System may improve your performance in the real Exams and Interview. Time Management for answering the Number System questions quickly is foremost important for success in Competitive Exams and Placement Interviews. Through Fresherslive Number System questions and answers, you can acquire all the essential idea to solve any difficult questions on Number System in short time and also in short cut method. Winners are those who can use the simplest method for solving a question. So that they have enough time for solving all the questions in examination, correctly without any tense. Fresherslive provides most simplest methods to answer any tough questions. Practise through Fresherslive test series to ensure success in all competitive exams, entrance exams and placement tests. Most of the job seekers finding it hard to clear Number System test or get stuck on any particular question, our Number System test sections will help you to success in Exams as well as Interviews. To acquire clear understanding of Number System, exercise these advanced Number System questions with answers. You're Welcome to use the Fresherslive Online Test at any time you want. Start your beginning, of anything you want by using our sample Number System Online Test and create yourself a successful one. Fresherslive provides you a new opportunity to improve yourself. Take it and make use of it to the fullest. GOODLUCK for Your Bright Future. Page 20Number System Questions: Solved 444 Number System Questions and answers section with explanation for various online exam preparation, various interviews, Aptitude Category online test. Category Questions section with detailed description, explanation will help you to master the topic.
381. Find the LCM of 37 , 7? SHOW ANSWER
Correct Ans:259 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
382. Output of a particular program follows the below pattern. Can you find the Missing number? SHOW ANSWER
Correct Ans:199 Explanation: The given series is -- 112, 141, 170, X , 228, 257 Consequtive numbers increases by 29 Following this pattern, the Missing Number X should increase by 29 from the previous number. When we add 29 to the number before X (i.e 170) we get 170+29=199
383. Find the HCF of 36 , 6? SHOW ANSWER
Correct Ans:6 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
384. Find the LCM of 37 , 5? SHOW ANSWER
Correct Ans:185 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
385. In the below given sequence, what should be the Missing number ? 112, 87, 62, X , 12, -13 SHOW ANSWER
Correct Ans:37 Explanation: The given series is -- 112, 87, 62, X , 12, -13Consequtive numbers decreases by 25Following this pattern, the Missing Number X should decrease by 25 from the previous number. When we subract 25 to the number before X (i.e 62) we get 62-25=37
386. Find the HCF of 36 , 22? SHOW ANSWER
Correct Ans:2 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
387. Find the LCM of 37 , 3? SHOW ANSWER
Correct Ans:111 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
388. A Computer program gave the following output. Can you predict the Missing number in the computer output ? 112, 137, 162, X , 212, 237 SHOW ANSWER
Correct Ans:187 Explanation: The given series is -- 112, 137, 162, X , 212, 237Consequtive numbers increases by 25Following this pattern, the Missing Number X should increase by 25 from the previous number. When we add 25 to the number before X (i.e 162) we get 162+25=187
389. Find the HCF of 32 , 14? SHOW ANSWER
Correct Ans:2 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
390. Find the LCM of 31 , 30? SHOW ANSWER
Correct Ans:930 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
391. A professor wrote down the below series in a class room. He wants his students to find the Missing number. Can you solve it ? 112, 91, 70, X , 28, 7 SHOW ANSWER
Correct Ans:49 Explanation: The given series is -- 112, 91, 70, X , 28, 7 Consequtive numbers decreases by 21 Following this pattern, the Missing Number X should decrease by 21 from the previous number. When we subract 21 to the number before X (i.e 70) we get 70-21 = 49
392. Find the HCF of 32 , 12? SHOW ANSWER
Correct Ans:4 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
393. Find the LCM of 31 , 20? SHOW ANSWER
Correct Ans:620 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
394. Below Numbers follow a particular pattern. Can you find the Missing number in the below pattern? 112, 133, 154, X , 196, 217 SHOW ANSWER
Correct Ans:175 Explanation: The given series is -- 112, 133, 154, X , 196, 217Consequtive numbers increases by 21Following this pattern, the Missing Number X should increase by 21 from the previous number. When we add 21 to the number before X (i.e 154) we get 154+21=175
395. Find the HCF of 32 , 10? SHOW ANSWER
Correct Ans:2 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
396. Find the LCM of 31 , 24? SHOW ANSWER
Correct Ans:744 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
397. In the given series, can you find the Missing number ? 112, 89, 66, X , 20, -3 SHOW ANSWER
Correct Ans:43 Explanation: The given series is -- 112, 89, 66, X , 20, -3Consequtive numbers decreases by 23Following this pattern, the Missing Number X should decrease by 23 from the previous number. When we subract 23 to the number before X (i.e 66) we get 66-23=43
398. Find the HCF of 32 , 8? SHOW ANSWER
Correct Ans:8 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
399. Find the LCM of 31 , 7? SHOW ANSWER
Correct Ans:217 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
400. Fourth number is missing in the below series. Can you find the Fourth number in the below series ? 112, 135, 158, X , 204, 227 SHOW ANSWER
Correct Ans:181 Explanation: The given series is -- 112, 135, 158, X , 204, 227Consequtive numbers increases by 23Following this pattern, the Missing Number X should increase by 23 from the previous number. When we add 23 to the number before X (i.e 158) we get 158+23=181 Are you seeking for good platform for practicing Number System questions in online. This is the right place. The time you spent in Fresherslive will be the most beneficial one for you. This page provides important questions on Number System along with correct answers and clear explanation, which will be very useful for various Interviews, Competitive examinations and Entrance tests. Here, Most of the Number System questions are framed with Latest concepts, so that you may get updated through these Number System Online tests. Number System Online Test questions are granted from basic level to complex level. Number System questions are delivered with accurate answer. For solving each and every question, very lucid explanations are provided with diagrams wherever necessary. Practice in advance of similar questions on Number System may improve your performance in the real Exams and Interview. Time Management for answering the Number System questions quickly is foremost important for success in Competitive Exams and Placement Interviews. Through Fresherslive Number System questions and answers, you can acquire all the essential idea to solve any difficult questions on Number System in short time and also in short cut method. Winners are those who can use the simplest method for solving a question. So that they have enough time for solving all the questions in examination, correctly without any tense. Fresherslive provides most simplest methods to answer any tough questions. Practise through Fresherslive test series to ensure success in all competitive exams, entrance exams and placement tests. Most of the job seekers finding it hard to clear Number System test or get stuck on any particular question, our Number System test sections will help you to success in Exams as well as Interviews. To acquire clear understanding of Number System, exercise these advanced Number System questions with answers. You're Welcome to use the Fresherslive Online Test at any time you want. Start your beginning, of anything you want by using our sample Number System Online Test and create yourself a successful one. Fresherslive provides you a new opportunity to improve yourself. Take it and make use of it to the fullest. GOODLUCK for Your Bright Future. Page 21Number System Questions: Solved 444 Number System Questions and answers section with explanation for various online exam preparation, various interviews, Aptitude Category online test. Category Questions section with detailed description, explanation will help you to master the topic.
401. Find the HCF of 32 , 6? SHOW ANSWER
Correct Ans:2 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
402. Find the LCM of 31 , 5 ? SHOW ANSWER
Correct Ans:155 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
403. Can you find the the missing number in the below series 112, 85, 58, X , 4, -23 SHOW ANSWER
Correct Ans:31 Explanation: The given series is -- 112, 85, 58, X , 4, -23Consequtive numbers decreases by 27Following this pattern, the Missing Number X should decrease by 27 from the previous number. When we subract 27 to the number before X (i.e 58) we get 58-27=31
404. Find the HCF of 32 , 22 ? SHOW ANSWER
Correct Ans:2 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
405. Find the LCM of 31 , 3 ? SHOW ANSWER
Correct Ans:93 Explanation: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisble by both the numbers. If any choice doesn’t get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers. Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
406. Find the Missing number in the the below series 112, 139, 166, X , 220, 247 SHOW ANSWER
Correct Ans:193 Explanation: The given series is -- 112, 139, 166, X , 220, 247 Consequtive numbers increases by 27 Following this pattern, the Missing Number X should increase by 27 from the previous number. When we add 27 to the number before X (i.e 166) we get 166+27=193
407. Find the next number SHOW ANSWER
Correct Ans:30 Explanation: Solution is Each number in the given series is the Product of two consecutive natural numbers. Given series is 2, 6, 12, 20 First number = 1 x 2 = 2 Second number = 2 x 3 = 6 Third number = 3 x 4 =12 Fourth number = 4 x 5 = 20 Next number will be = (5 x 6) = 30 Answer is 30
408. What number comes next : 899 , 960 , 1023 , 1088 , ... ? SHOW ANSWER
Correct Ans:1155 Explanation: Given 899 , 960 , 1023 , 1088 ,... First number (899) is 30 x 30 - 1 Second number (960) is 31 x 31 - 1 Third number (1023) is 32 x 32 - 1 Fourth number (1088) is 33 x 33 - 1 Next number has to be 34 x 34 - 1 = 1155 Answer is 1155
409. What number comes next : 99 , 120 , 143 , 168 , ... ? SHOW ANSWER
Correct Ans:195 Explanation: Given Given series is 99 , 120 , 143 , 168 , ... First number (99) is 10 x 10 - 1 Second number (120) is 11 x 11 - 1 Third number (143) is 12 x 12 - 1 Fourth number (168) is 13 x 13 - 1 Next number has to be 14 x 14 - 1 = 195 Answer is 195
410. What number shoud come next ? SHOW ANSWER
Correct Ans:13 Explanation: Solution is 2, 3, 5, 7, 11 Prime numbers written in the order Answer is 13
411. What number comes next : 1023 , 1088 , 1155 , 1224 , ... ? SHOW ANSWER
Correct Ans:1295 Explanation: Solution is : Given series is 1023 , 1088 , 1155 , 1224 ,... First number (1023) is 32 x 32-1 Second number (1088) is 33 x 33-1 Third number (1155) is 34 x 34 -1 Fourth number (1224) is 35 x 35 -1 Next number has to be 36 x 36-1 = 1295 Answer is 1295
412. Find the missing term : SHOW ANSWER
Correct Ans:42 Explanation: Solution is : Given 0, 2, 6, 12, 20, 30 First number (0) is: 12- 1, Second number (2) is: 22- 2, Third number (6) is: 32- 3, Fourth number (12) is: 42- 4, Fifth number (20) is: 52- 5, Sixth number (30) is: 62- 6 The next term has to be 72- 7 = 49 - 7 = 42
413. Find the next number SHOW ANSWER
Correct Ans:26 Explanation: Solution is : Given : 2, 5 , 10, 17 First number (2) = 12 +1, Second number (5) = 22 + 1, Third number (10) = 32 + 1, Fourth number (17) = 42 +1 , Missing number = (52+1) = 25 + 1 = 26 So,Answer is 26
414. What number comes next : 901 , 962 , 1025 , 1090 , ... ? SHOW ANSWER
Correct Ans:1157 Explanation: Solution is: Given 901 , 962 , 1025 , 1090 First number (901) is 30 x 30 + 1 Second number (962) is 31 x 31 + 1 Third number (1025) is 32 x 32 + 1 Fourth number (1090) is 33 x 33 + 1 Next number has to be 34 x 34 +1 = 1157
415. What number comes next : 8 , 15 , 24 , 35 , ... ? SHOW ANSWER
Correct Ans:48 Explanation: Solution is Given 8 , 15 , 24 , 35 , ... First number (8) is 3 x 3 - 1 , Second number (15) is 4 x 4 - 1 , Third number (24) is 5 x 5 - 1 , Fourth number (35) is 6 x 6 - 1 Next number has to be 7 x 7 - 1 = 48
416. In the given series, can you find the Missing number ? 106, 83, X , 37, 14 SHOW ANSWER
Correct Ans:60 Explanation: Solution is : The given series is 106, 83, X , 37, 14 Consecutive numbers decreases by 23 Following this pattern, the Missing Number X should decrease by 23 from the previous number. When we subract 23 to the number before X( i.e 83 ) we get 83 - 23= 60.
417. What number comes next : 99 , 120 , 143 , 168 , __ ? SHOW ANSWER
Correct Ans:195 Explanation: Solution is SoNext number has to 14 x 14 - 1 = 195 Answer is 195
418. What number comes next : 8 , 15 , 24 , 35 , ... ? SHOW ANSWER
Correct Ans:48 Explanation: Solution is : Given 8 , 15 , 24 , 35 , ... First number is 3 x 3-1 , Second number is 4 x 4-1 , Third number is 5 x 5 -1 , Fourth number is 6 x 6 -1 Next number has to 7 x 7-1 = 48
419. Find the NEXT term : SHOW ANSWER
Correct Ans:25 Explanation: Given 11, 17, 15, 21, 19 The above terms follow the pattern +6, -2, +6, -2, +6, -2, ... 11, 11+6=17, 17-2=15, 15 +6 = 21, 21-2=19 Now, 19+6 =25 Hence the next term has to be 25
420. Find the NEXT term : SHOW ANSWER
Correct Ans:22 Explanation: Given 13, 18, 16, 21, 19, 24 The above terms follow the pattern +5, -2, +5, -2, +5, -2. Hence the next term has to be 24-2 = 22 Are you seeking for good platform for practicing Number System questions in online. This is the right place. The time you spent in Fresherslive will be the most beneficial one for you. This page provides important questions on Number System along with correct answers and clear explanation, which will be very useful for various Interviews, Competitive examinations and Entrance tests. Here, Most of the Number System questions are framed with Latest concepts, so that you may get updated through these Number System Online tests. Number System Online Test questions are granted from basic level to complex level. Number System questions are delivered with accurate answer. For solving each and every question, very lucid explanations are provided with diagrams wherever necessary. Practice in advance of similar questions on Number System may improve your performance in the real Exams and Interview. Time Management for answering the Number System questions quickly is foremost important for success in Competitive Exams and Placement Interviews. Through Fresherslive Number System questions and answers, you can acquire all the essential idea to solve any difficult questions on Number System in short time and also in short cut method. Winners are those who can use the simplest method for solving a question. So that they have enough time for solving all the questions in examination, correctly without any tense. Fresherslive provides most simplest methods to answer any tough questions. Practise through Fresherslive test series to ensure success in all competitive exams, entrance exams and placement tests. Most of the job seekers finding it hard to clear Number System test or get stuck on any particular question, our Number System test sections will help you to success in Exams as well as Interviews. To acquire clear understanding of Number System, exercise these advanced Number System questions with answers. You're Welcome to use the Fresherslive Online Test at any time you want. Start your beginning, of anything you want by using our sample Number System Online Test and create yourself a successful one. Fresherslive provides you a new opportunity to improve yourself. Take it and make use of it to the fullest. GOODLUCK for Your Bright Future. Page 22Number System Questions: Solved 444 Number System Questions and answers section with explanation for various online exam preparation, various interviews, Aptitude Category online test. Category Questions section with detailed description, explanation will help you to master the topic.
421. Find the NEXT term : SHOW ANSWER
Correct Ans:42 Explanation: Given flow is: 0, 2, 6, 12, 20, 30
422. What number shoud come next 34, 17, 18, 9, ? SHOW ANSWER
Correct Ans:10 Explanation: Solution is Answer is 10
423. What number shoud come next ? 2, 3, 5, 7, 11, ? SHOW ANSWER
Correct Ans:13 Explanation: Given 2, 3, 5, 7, 11, Prime numbers writen in the order Answer 13
424. Look at this series: 2, 1, (1/2), (1/4), ... What number should come next? SHOW ANSWER
Correct Ans:1/8 Explanation: Solution is Answer is 1 / 8
425. Find the next number, 2, 5, 10, 17, ? SHOW ANSWER
Correct Ans:26 Explanation: Solution is : Given : 2, 5 , 10, 17 = 12 +1, 22 + 1, 32 + 1, 42 +1 , (52+1) So,Answer is 26
426. Find the next number, 2, 6, 12, 20, ? SHOW ANSWER
Correct Ans:30 Explanation: Given : 2, 6, 12, 20 1 x 2, 2 x 3, 3 x 4, 4 x 5, (5 x 6) Answer is 30. Product of two consecutive natural numbers
427. If a quarter kg of potato costs 60 paisa, how many paisa will 200gm cost ? SHOW ANSWER
Correct Ans:52 Explanation: Quarter kg = 250 grams Less weight, less price (direct proportion) 250 : 200 :: 60 : x x = (200 x 60)/ 250 => x = 48 So 200 gm will cost 48 paisa
428. How much part of a day is 45 minutes ? SHOW ANSWER
Correct Ans:Jan-32 Explanation: 45 minutes = 3/4 of an hour. An hour = 1 / 24 of day 3/4 of hour = 3/ (4 x 24) of day = 1/32 of the day
429. 2720 ? 2710 = 3k, then k = ? SHOW ANSWER
Correct Ans:30 Explanation: 27^20 ? 27^10 = 3^k => 27^10 = 3^k => (3^3)10 = 3^k => 3^30 = 3^k.
430. Five ? sixths of a number is 720. What will be 45 % of that number ? SHOW ANSWER
Correct Ans:388.8 Explanation: Let the number be k Then 5k/6 = 720 => k = 720 x (6/5) = 864 45% of 864 = (45/100) x 864 = 388.8
431. By how much is 3/4th of 568 lesser than 7/8th of 1008 SHOW ANSWER
Correct Ans:456 Explanation: 7/8 * 1008=882 3/4* 568=426
432. Find the value of k, if k / 171 = 76 / k SHOW ANSWER
Correct Ans:114 Explanation: k / 171 = 76 / k ? k2 = 76 x 171 = 4 x 19 x 19 x 9 ? k2=22 x 192 x 32 => k = 2 x 19 x 3 => k = 114
433. If the numerator of a fraction is increased by 300% and the denominator is increased by 100%, the resultant fraction is 1 11/19 . Find the original fraction SHOW ANSWER
Correct Ans:15/19 Explanation: Let the original fraction be x/y. Numerator increased by 300% means, it is quadrupled. Denominator increase by 100% means, it is doubled. New fraction is 4x/2y = 30/19 (writing in simple fraction) ? 2x/y = 30/19 => x/y = 15/19
434. Which of the following number should be added to 28614 in order to obtain a multiple of 87 ? SHOW ANSWER
Correct Ans:9 Explanation: On dividing the given number 28614 by 87, we have the remainder = 78. That is 28614 = 87 x 328 + 78 Therefore, the required number to be added is 87-78 = 9
435. The sum of two numbers is 16 and their difference is 2. Find the product of the two numbers SHOW ANSWER
Correct Ans:63 Explanation: Let the two numbers be x and y Sum of the two numbers x + y=16 Difference of the two numbers x-y=2 Adding these two equation, we get 2x=18 => x = 9 Subtracting these two equation, we get 2x=14 => y = 7 Product of these two numbers : (x) x (y) = 63
436. What number comes next : 899 , 960 , 1023 , 1088 , ... ? SHOW ANSWER
Correct Ans:1155 Explanation: Given 899 , 960 , 1023 , 1088 ,... First number is (30 x 30)-1 , Second number is (31 x 31)-1 , Third number is (32 x 32) -1 , Fourth number is (33 x 33) -1 The numbers are in the form of n2 ? 1 Next number has to 34 x 34-1 = 1155
437. What should come in place of the question mark (?) in the following number series 2 5 11 23 47 ? SHOW ANSWER
Correct Ans:95 Explanation: 2 5 11 23 47 ? It is clear that the next number has to be 47 + 48 =95
438. If the product of two successive positive integers is 5328, which is the smallest integer? SHOW ANSWER
Correct Ans:72 Explanation: 72 x 74 = 5328
439. On dividing a number by 357, we get 39 as remainder. On dividing the same number by 17, what will be the remainder? SHOW ANSWER
Correct Ans:5 Explanation: Let X be the number and y be the quotient. Then, X = 357 x y + 39 =(17x21xy)+(17x2)+5 =17 x (21y+2)+5 So, required number = 5
440. Cube root of (941192) = ? SHOW ANSWER
Correct Ans:98 Explanation: 98 x 98 x 98 = 941192 Are you seeking for good platform for practicing Number System questions in online. This is the right place. The time you spent in Fresherslive will be the most beneficial one for you. This page provides important questions on Number System along with correct answers and clear explanation, which will be very useful for various Interviews, Competitive examinations and Entrance tests. Here, Most of the Number System questions are framed with Latest concepts, so that you may get updated through these Number System Online tests. Number System Online Test questions are granted from basic level to complex level. Number System questions are delivered with accurate answer. For solving each and every question, very lucid explanations are provided with diagrams wherever necessary. Practice in advance of similar questions on Number System may improve your performance in the real Exams and Interview. Time Management for answering the Number System questions quickly is foremost important for success in Competitive Exams and Placement Interviews. Through Fresherslive Number System questions and answers, you can acquire all the essential idea to solve any difficult questions on Number System in short time and also in short cut method. Winners are those who can use the simplest method for solving a question. So that they have enough time for solving all the questions in examination, correctly without any tense. Fresherslive provides most simplest methods to answer any tough questions. Practise through Fresherslive test series to ensure success in all competitive exams, entrance exams and placement tests. Most of the job seekers finding it hard to clear Number System test or get stuck on any particular question, our Number System test sections will help you to success in Exams as well as Interviews. To acquire clear understanding of Number System, exercise these advanced Number System questions with answers. You're Welcome to use the Fresherslive Online Test at any time you want. Start your beginning, of anything you want by using our sample Number System Online Test and create yourself a successful one. Fresherslive provides you a new opportunity to improve yourself. Take it and make use of it to the fullest. GOODLUCK for Your Bright Future. Page 23Number System Questions: Solved 444 Number System Questions and answers section with explanation for various online exam preparation, various interviews, Aptitude Category online test. Category Questions section with detailed description, explanation will help you to master the topic.
441. The difference between a two digit number and the number obtained by interchanging two digits of the number is 9.The sum of the two digits of the number is 15. What is product of the two digits of two digit number ? SHOW ANSWER
Correct Ans:56 Explanation: Sum of the digits is 15, this can happen only when the digits are 7 and 8. The number is 87, interchanging digits we get 78, Difference between these two numbers = 9 Product of these two digits = 7 x 8 = 56
442. The product of two consecutive even numbers is 15128. Find the average of these two numbers. SHOW ANSWER
Correct Ans:123 Explanation: We wil go from the option. We will eliminate 133 and 139, since their product will exceed 16900. Now the tug of war is between 123 and 127. Lets take 123, if 123 is the average then the consecutive even numbers will be 122 and 124. Now, observe, 122 x 124 = ....8, that is the resulting number ends with 8. Now you try for 127. (HINT : The consecutive even number with 127 as average us 126 and 128) The two numbers are 122 and 124. Average is 123.
443. What is the least number to be added with 2016 to make it perfect square? SHOW ANSWER
Correct Ans:9 Explanation: 452 = 2025, If we add 9 with 2016 we get 2025.
444. When all students in a school are made to stand in a row of 54, 30 such rows are formed. If the students are made to stand in the rows of 45, how many such rows can be formed ? SHOW ANSWER
Correct Ans:36 Explanation: Given number of rows = 54, each row contains 30 students. Total number of students = 54 x 30. If there are 45 and k rows, then 45 x k = 54 x 30 Dividing both sides by 9, we get 5 x k = 6 x 30 => k 36 Are you seeking for good platform for practicing Number System questions in online. This is the right place. The time you spent in Fresherslive will be the most beneficial one for you. This page provides important questions on Number System along with correct answers and clear explanation, which will be very useful for various Interviews, Competitive examinations and Entrance tests. Here, Most of the Number System questions are framed with Latest concepts, so that you may get updated through these Number System Online tests. Number System Online Test questions are granted from basic level to complex level. Number System questions are delivered with accurate answer. For solving each and every question, very lucid explanations are provided with diagrams wherever necessary. Practice in advance of similar questions on Number System may improve your performance in the real Exams and Interview. Time Management for answering the Number System questions quickly is foremost important for success in Competitive Exams and Placement Interviews. Through Fresherslive Number System questions and answers, you can acquire all the essential idea to solve any difficult questions on Number System in short time and also in short cut method. Winners are those who can use the simplest method for solving a question. So that they have enough time for solving all the questions in examination, correctly without any tense. Fresherslive provides most simplest methods to answer any tough questions. Practise through Fresherslive test series to ensure success in all competitive exams, entrance exams and placement tests. Most of the job seekers finding it hard to clear Number System test or get stuck on any particular question, our Number System test sections will help you to success in Exams as well as Interviews. To acquire clear understanding of Number System, exercise these advanced Number System questions with answers. You're Welcome to use the Fresherslive Online Test at any time you want. Start your beginning, of anything you want by using our sample Number System Online Test and create yourself a successful one. Fresherslive provides you a new opportunity to improve yourself. Take it and make use of it to the fullest. GOODLUCK for Your Bright Future. |
What is the greatest number that will divide 1204, 3664 and 5904 leaving the same remainder?
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