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    Question

    The circumference of a park is 750m. A and B start

    walking from the same point in the same direction at 6.75 kmph and 4.75 kmph. Among the given options, In what time will they meet each other?
    A 3 hours Correct Answer Incorrect Answer
    B 2.5 hours Correct Answer Incorrect Answer
    C 3.5 hours Correct Answer Incorrect Answer
    D 4 hours Correct Answer Incorrect Answer

    Solution

    Since they are moving in same direction, so their relative speed = 6.75 - 4.75 = 2kmph So they will meet after every =distance/speed = 0.75 km / ( 2kmph) = 0.75 /2 hrs = 0.75/2 * 60 = 22.5 Minutes So among the given option , only 3 hrs means 180 min is a multiple of 22.5 min hence they will meet after 3 hrs.

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