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Discussion :: Problems on Trains

  1. A train passes a station platform in 36 seconds and a man standing on the platform in 20 seconds. If the speed of the train is 54 km/hr, what is the length of the platform?

    2. A.
    120 m
    B.
    240 m
    C.
    300 m
    D.
    None of these

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    Answer : Option B

    Explanation :

    Speed = 1-sym-oparen-h1 54 x 5 1-sym-cparen-h1m/sec = 15 m/sec.
    18

    Length of the train = (15 x 20)m = 300 m.

    Let the length of the platform be x metres.

    Then, x + 300 = 15
    36

     x + 300 = 540

     x = 240 m.

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