Subject
Quantitative Aptitude
Topic
Speed & Distance
A runs 12/3times as fast as B. If A gives B a start of 80 m, how far must the winning post be so that A and B might reach it at the same time?
A runs 12/3times as fast as B. If A gives B a start of 80 m, how far must the winning post be so that A and B might reach it at the same time?
ক)
200 mখ)
300 mগ)
270 mঘ)
160 mExplanation
Ratio of the speeds of A and B = 5/3 : 1 = 5:3. Thus, in race of 5m, A gains 2m over B. 2 m are gained by A in a race of 5m. 80 m will be gained by A in race of {(5/2)×80}m = 200 m. So, Winning post is 200 m away from the starting point.Related questions
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