How long does a train 110 Metres long running at 36 km HR take to cross a bridge 132 Metres in length?

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120 Questions 120 Marks 90 Mins

Given:

Length of train = 110 m

Speed of train = 132 km/hr

Length of bridge = 165 m

Formula used:

Distance = Speed × Time

1 km/hr = (5/18) m/sec

Calculation:

Length of train = 110 m

Speed of train = 132 km/hr = 132 × (5/18) = 110/3 m/sec

Length of bridge = 165 m 

Total distance = 110 + 165 = 275 m

Time = Distance/Speed

Time = 275/(110/3)

⇒ Time = 15/2 = 7.5 seconds

∴ The required time is 7.5 seconds.

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