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Discussion :: Problems on Trains

  1. Two trains of equal lengths take 10 sec and 15 sec respectively to cross a telegraph post. If the length of each train be 120 m, in what time will they cross other travelling in opposite direction?
    2. A.
    10
    B.
    12
    C.
    15
    D.
    20

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    Answer : Option B

    Explanation :

    Speed of the first train = 120/10 = 12 m/sec.

    Speed of the second train = 120/5 = 8 m/sec.

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