New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    A runner completed a 40 km race in 3 hours. She changed

    her speed after completing each quarter of the distance such that the proportion of the speeds in the first, second, third and the fourth quarter, is given by 23:45 respectively. In how much time then (approximately) did she complete the last quarter of the race?
    A 32 minutes Correct Answer Incorrect Answer
    B 31 minutes Correct Answer Incorrect Answer
    C 29 minutes Correct Answer Incorrect Answer
    D 28 minutes Correct Answer Incorrect Answer

    Solution

    The correct answer is D

    Practice Next

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