In a 120 meters race A beats B by 56 m or 7 seconds. A's time over the course is:	Choose the correct choice from the following:
A) 22 seconds
B) 12 seconds
C) 10 seconds
D) 8 seconds
E) 28 seconds

Rationale: "b runs 56 m in 7 sec . = > b runs 120 m in 7 / 56 * 120 = 15 seconds since a beats b by 7 seconds , a runs 120 m in ( 15 - 7 ) = 8 seconds hence , a ' s time over the course = 8 seconds answer : d"
Answer: D