Question
3 runners run together in the same direction from a
place on a circular path of 16 km and their speeds are 4, 6, and 8 km/h, in how many hours will they meet at the same place?Solution
Total distance = 16 km Time taken by the first person to complete the round = 16/4 = 4 hours second person to complete the round = 16/6 = 8/3 hours and time taken by the third person = 16/8 = 2 hours Time of meet = LCM of 4 ,8/3 and 2 = 8 hours
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