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    Question

    A train has to cover a distance of 180 km in 20 hours.

    If it covers half journey in 3/5th time, then the speed of covering the remaining distance in the time left has to be:
    A 20 km/hr Correct Answer Incorrect Answer
    B 11.25 km/hr Correct Answer Incorrect Answer
    C 15 km/hr Correct Answer Incorrect Answer
    D 17.5 km/hr Correct Answer Incorrect Answer

    Solution

    Speed = Distance/time = 180/20 = 9 km/hr According to the question, New time = 3/5 x 20 = 12 hrs New distance = 1/2 x 180 = 90 km Required speed = Distance left/Time left = 90/8 = 11.25 km/hr

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