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    Question

    Speed of train is 55 km/hr. The length of train is 800

    metre. In how much time can it cross a 1400 metre  long  platform?
    A 132 seconds Correct Answer Incorrect Answer
    B 96 seconds Correct Answer Incorrect Answer
    C 124 seconds Correct Answer Incorrect Answer
    D 144 seconds Correct Answer Incorrect Answer

    Solution

    Speed = (Length of train + Length of platform)/Time   Speed = (800 + 1400)/Time (55x5/18) = 2200/Time Time = 39600/ (55 x 5) Time = 144 seconds In 144 seconds, it can cross a 1400 m long platform.

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