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Discussion :: Problems on Trains

  1. The length of the bridge, which a train 130 meters long and travelling at 45 km/hr can cross in 30 seconds, is:
    2. A.
    200 m
    B.
    225 m
    C.
    245 m
    D.
    250 m

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    Workspace

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    Answer : Option C

    Explanation :

    Speed = (45 * 5/18) m/sec = (25/2) m/sec. Time = 30 sec. Let the length of bridge be x meters. Then, (130 + X)/30 = 25/2 ==> 2(130 + X) = 750 ==> X = 245 m.

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