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    Question

    Karan and Varun started running

    in a straight line at 5 m/s and 7.5 m/s respectively. If Karan started 90 meters ahead of Varun, how much time will Varun take to catch Karan?
    A 46 seconds Correct Answer Incorrect Answer
    B 33 seconds Correct Answer Incorrect Answer
    C 26 seconds Correct Answer Incorrect Answer
    D 36 seconds Correct Answer Incorrect Answer
    E None of These Correct Answer Incorrect Answer

    Solution

    ATQ,

    Relative speed of Varun with respect to Karan = 7.5 − 5 = 2.5 m/s Required time = 90/2.5 = 36 seconds

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