The speed of A B and C when they run around a circular track is 60m/sec, 40m/sec and 20m/sec respectively. They start from the same point and in the same direction. Time taken by A to complete one round is 20 minutes. i) When will they meet for the first time at any point on the track? (in mins) ii) After how many hours will they be together at the starting point for the first time? A) 100, 3 B) 80,4 C) 120,2 D) None of these
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