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  1. A train running at a speed of 36 kmph crosses an electric pole in 12 seconds. In how much time will it cross a 350 m long platform?
    2. A.
    44 sec
    B.
    49 sec
    C.
    42 sec
    D.
    47 sec
    E.
    None of these

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    Answer : Option D

    Explanation :

    Let the length of the train be x m.

    When a train crosses an electric pole, the distance covered is its own length.

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