A runs 1% times as fast as B. If A gives B a start of 30 m, how far must the winning post be, so that A and B reach it at the same time?

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Accepted Answer

A is 13/4 faster than B. Then, ratio of the rates of A and B = 7 : 4 3 m are gained in a race of 7 m . 30 m are gained in a race of (7/3) x 30 = 70 m

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