Question
A runs `1 2/3` times as fast as B . If A gives B a start pf 80 m, how far must the winning post be so that . A and B might reach it at the same time ?
Answer: Option A
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Ratio of the speeds of A and B = `5/3 : 1` = 5 : 3
Thus , in a race of 5 m , A gains 2 m over B.
2 m are gained by A in a race of 5 m.
80 m will be gained by A in a race of `(5/2 xx 80)` m = 200 m.
`:.` Winning post is 200 m away from the starting point
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