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Discussion :: Problems on Trains

  1. A train moves fast a telegraph post and a bridge 264 m long in 8 sec and 20 sec respectively. What is the speed of the train?
    2. A.
    69.5 km/hr
    B.
    70 km/hr
    C.
    79 km/hr
    D.
    79.2 km/hr

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    Answer : Option D

    Explanation :

    Let the length of the train be x m and its speed be y m/sec.

    Then, x/y = 8 => x = 8y

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