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- A runs 1 2/3 times as fast as B.
Question 1:
A runs 1 2/3 times 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. 200 m
Feedback Ratio of the speeds of A and B =5 : 1 = 5 :3
Thus, in 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 race of (52*80) m =200m
=> Winning post is 200 m away from the starting point.
Thus, in 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 race of (52*80) m =200m
=> Winning post is 200 m away from the starting point.
B. 120 m
C. 130 m
D. 140 m
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