In a kilometer race, A beats B by 50 meters or 10 seconds. What time does A take to complete the race ?

A. 210 sec
B. 150 sec
C. 190 sec
D. 200 sec

Explanation:

Time taken by B run 1000 meters = (1000 * 10)/50 = 200 sec.
Time taken by A = 200 – 10 = 190 sec.

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