Answer: Option C

Explanation:

A : B = 100 : 75

B : C = 100 : 96.

A beats C by (100 - 72) m = 28 m

Answer: Option A

Ratio of the speeds of A and B = = 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.

Winning post is 200 m away from the starting point

Answer: Option B

B runs

B covers 300 m in

B runs 35 m in 7 sec.

B covers 200 m in

B's time over the course = 40 sec.

A's time over the course (40 - 7) sec = 33 sec.