In a 200 meters race A beats B by 35 m or 7 seconds.A’s time over the course is : Choose the correct choice from the following answers.
A) 40 sec	B) 47 sec	C) 33 sec	D) 35 sec	E) none of these

Rationale: "solution b runs 35 m in 7 sec . ∴ b covers 200 m in ( 7 / 35 x 200 ) = 40 sec b ’ s time over the course = 40 sec . ∴ a ’ s time over the course = ( 40 - 7 ) sec = 33 sec answer c"
Answer: C