Question

    A, B, and C run around a Circular track starting from the same point simultaneously and in the same direction at 12 km/h, 24 km/h, and 36 km/h respectively. If the length of the track is 600 meters, when will A, B, and C meet at the starting point for the first time after they start the race?

    A 5 min Correct Answer Incorrect Answer
    B 10min Correct Answer Incorrect Answer
    C 12min Correct Answer Incorrect Answer
    D 18min Correct Answer Incorrect Answer

    Solution

    Time = Distance/Speed Time for A = 0.6/6 hours Time for B = 0.6/12 hours Time for C = 0.6/18 hours LCM of A, B, C = (LCM of numerator)/ (HCF of Denominator) = (LCM of 0.6,0.6,0.6)/ (HCF of 12,24,36) = 0.6/12 hours 0.6/12 hours = 5 minutes

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