Question

In 100 m race, A covers the distance in 36 seconds and B in 45 seconds. In this race A beats B by

A) 20 m B) 25 m C) 22.5 m D) 9 m

Answer 1

The answer is 20m

Step-by-step explanation:

speed of A = 100m/36s

= 25/9 m/s

speed of B = 100m/45s

= 20/9m/s

Distance covered by A in 36s is 100m.

Then the distance covered by B in 36s is

= speed of B x time(36s)

=20/9. x 36

= 80m

Distance covered by A in 36s is 100m

Distance covered by B in 36s is 80m

the difference is 20m

therefore A beats B by 20m

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