1.  In a 200 metres race A beats B by 35 m or 7 seconds. A's time over the course is:
A. 40 sec
B. 47 sec
C. 33 sec
D. None of these

Answer: Option C

Explanation:

B runs 35 m in 7 sec.

B covers 200 m in 7 x 200
35

= 40 sec.

B's time over the course = 40 sec.

B's time over the course = 40 sec.

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