Multiple Choice Questions on A train is moving at a speed of 132 km hour If the length of the train is 110 meters how long will i........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

A train is moving at a speed of 132 km hour If the length of the train is 110 meters how long will i...........

Quantitative Aptitude ( CCS) Problems on trains
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    A train is moving at a speed of 132 km/hour. If the length of the train is 110 meters, how long will it take to cross a railway platform 165 meters long.

    7 second

    Incorrect Answer

    7.5 second

    Correct Answer

    8 second

    Incorrect Answer

    8.5 second

    Incorrect Answer
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    Explanation:

    As we need to calculate answer in seconds, so first convert speed into meter/sec.

    we know 1 km/hr = 1*(5/18) m/sec
    So, Speed = 132* (5/18) = 110/3 m/sec

    Distance need to be covered in passing the platform

    =Length of train + length of platform = 110 + 165
    = 275 meters

    Time = Distance/Speed

    Time = 275 * 3/110 = 15/2 = 7.5 sec.

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