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    Question

    A train of length 150 m passes a platform of length 350

    m in 25 s. Find:  (i) speed of the train in km/h, (ii) time to pass a man standing still.
    A 72 km/h and 7.5 s Correct Answer Incorrect Answer
    B 42 km/h and 2.5 s Correct Answer Incorrect Answer
    C 42 km/h and 7 s Correct Answer Incorrect Answer
    D 33 km/h and 11 s Correct Answer Incorrect Answer

    Solution

    ATQ, Distance to pass platform = 150 + 350 = 500 m Speed = 500/25 = 20 m/s = 20*(18/5) = 72 km/h Time to pass man = 150/20 = 7.5 s

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