In a 500 m race, the ratio of the speeds of two contestants A and B is 3 : 4. If A has a start of 140…
The correct choice is: 20 m With a 140 m start, A has to run only \(500-140=360\) m. In that time B runs \(360\times\dfrac43=480\) m, so B is still 20 m short. Hence the…
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In a 500 m race, the ratio of the speeds of two contestants A and B is 3 : 4. If A has a start of 140 m, then A wins by .............. .
Answer and explanation
Correct answer C
The correct choice is: 20 m
With a 140 m start, A has to run only m.
In that time B runs m, so B is still 20 m short.
Hence the answer is 20 m.
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NCHM Joint Entrance Examination (NCHM JEE)