Question
Two boys start running simultaneously around a circular
track of length 200 m from the same point at the speed of 16 km/hr and 20 km/hr respectively. When will they meet for the first time anywhere on the track if they are moving in opposite directions?Solution
Time taken to meet for the first time anywhere on the track, => Length of the track/relative speed => 200/ [(16 + 20) × 5/18] => (200 × 18)/ (36 × 5) = 20 seconds
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