Correct Answer: Option C
To reach the winning post A will have to cover a distance of (500-140)m, i.e., 360m
While A covers 3 m, B covers 4 m.
While A covers 360m, B covers (4/3×360)m =480 m.
Thus, When A reaches the winning post, B covers 480 m and therefore remains 20 m behind.
So, A wins by 20 m.
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