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Discussion :: Problems on Trains

  1. Two trains 140 m and 160 m long run at the speed of 60 km/hr and 40 km/hr respectively in opposite directions on parallel tracks. The time which they take to cross each other is?
    2. A.
    9
    B.
    9.6
    C.
    10
    D.
    10.8

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    Workspace

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    Answer : Option D

    Explanation :

    Relative speed = 60 + 40 = 100 km/hr.

    = 100 * 5/18 = 250/9 m/sec.

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