A, B and C are running on a circular tra...

A, B and C are running on a circular track of radius 63 m. B and C run in the opposite direction of A. If the speed of A, B and C is 30, 25 and 14 m/minutes respectively then find when will they meet together first time and when will they together meet at the starting point?

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36 min., 396 min.

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