In a kilometer race, A beats B by 50 meters or 20 seconds. What time does A take to complete the race? Choose the correct choice from the following:
A) 380 sec
B) 190 sec
C) 726 sec
D) 127 sec
E) 128 sec

Rationale: "time taken by b run 1000 meters = ( 1000 * 20 ) / 50 = 400 sec . time taken by a = 400 - 20 = 380 sec . answer : a"
Answer: A