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Discussion :: Problems on Trains

  1. The two trains of lengths 400 m, 600 m respectively, running at same directions. The faster train can cross the slower train in 180 sec, the speed of the slower train is 48 km. then find the speed of the faster train?
    2. A.
    58 Kmph
    B.
    68 Kmph
    C.
    78 Kmph
    D.
    55 Kmph

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    Answer : Option B

    Explanation :

    Length of the two trains = 600m + 400m 

    Speed of the first train = X

    Speed of the second train= 48 Kmph 

    1000/X - 48 = 180

    1000/x - 48 * 5/18 = 180

    50 = 9X - 120

    X = 68 Kmph 

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