If in a race of 80m, A covers the distance in 20 seconds and B in 25 seconds, then A beats B by:
Answer: B
The difference in the timing of A and B is 5 seconds. Hence, A beats B by 5 seconds.
The distance covered by B in 5 seconds = (80 * 5) / 25 = 16m
Hence, A beats B by 16m.