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    Question

    yoti, Kavya, Shivam and Manish start walking from the

    same point in the same direction around a rectangular track and each one of them completes one round in 180 seconds, 270 seconds, 360 seconds and 240 seconds respectively. After how much time will they all meet again at one point ?
    A 32 minutes Correct Answer Incorrect Answer
    B 34 minutes 15 seconds Correct Answer Incorrect Answer
    C 36 minutes Correct Answer Incorrect Answer
    D 30 minutes 20 seconds Correct Answer Incorrect Answer

    Solution

    Solution-

    Jyoti Kavya, Shivam, And Manish=180,270,360,240second

    LCM of 180,270,360,240second=2160sec

    Meeting point =2160/60min

    =36min

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