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    Question

    A train is travelling at the rate of 90 km/hr. How many

    seconds it will take to cover a distance of 5/8 km?
    A 40 sec Correct Answer Incorrect Answer
    B 30 sec Correct Answer Incorrect Answer
    C 25 sec Correct Answer Incorrect Answer
    D 20 sec Correct Answer Incorrect Answer

    Solution

    Speed of train = 90 km/hr Speed of train in (m/sec) = 90 x 5/18 = 25 m/sec Distance = 5/8 of 1 km = 5/8 x 1000 m = 625 m Therefore, Speed = distance/time 25 = 625/t Time = 625/25 = 25 sec

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