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Discussion :: Problems on Trains

  1. In what time will a train 100 m long cross an electric pole, it its speed be 144 km/hr?
    2. A.
    2.5 sec
    B.
    4.25 sec
    C.
    5 sec
    D.
    12.5 sec

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    Answer : Option A

    Explanation :

    Speed = 144 * 5/18 = 40 m/sec

    Time taken = 100/40 = 2.5 sec.

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