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    Question

    An athlete running at three-quarters of her average

    speed takes 25 minutes extra than her usual time to finish a marathon. Find her usual time to finish the marathon.
    A 19 min Correct Answer Incorrect Answer
    B 12 min Correct Answer Incorrect Answer
    C 10 min Correct Answer Incorrect Answer
    D 75 min Correct Answer Incorrect Answer

    Solution

    ATQ,

    Let her usual time be 't' minutes. This new time is 25 minutes more:

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