In a one Kilometer race A beats B by 28 meters or 7 seconds. Find out the time taken by A to finish the race.

A) 4 mins 3 secs

B) 3 mins 4 secs

C) 5 mins

D) 4 mins 20 secs

Solution:

B’s time over the course = (7/28)*100= 250 sec

A’s time over the course = 270 – 7 = 243 sec

4 mins 3 secs