In a kilometer race, A beats B by 80 meters or 10 seconds. What time does A take to complete the race?  Choose the correct choice from the following
A) 167 sec
B) 190 sec
C) 176 sec
D) 115 sec
E) 123 sec

Rationale: "time taken by b run 1000 meters = ( 1000 * 10 ) / 80 = 125 sec . time taken by a = 125 - 10 = 115 sec . answer : d"
Answer: D