Correct Answer: Option A
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.
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