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Discussion :: Problems on Trains

  1. How long does a train 110 m long running at the speed of 72 km/hr takes to cross a bridge 132 m length?
    2. A.
    9.8 sec
    B.
    12.1 sec
    C.
    12.42 sec
    D.
    14.3 sec

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    Workspace

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    Answer : Option B

    Explanation :

    Speed = 72 * 5/18 = 20 m/sec

    Total distance covered = 110 + 132 = 242 m.

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