Question

In a 100 m race , a covers the distance in 36 seconds and b in 45 seconds . In this race a beats b by :

Answer 1

Answer:

20 m

Explanation:

difference of time 45 - 36 = 9 s              

Distance covered by B in 9 sec. = (100/45) x 9m            by formula  s = v x t

= 20 m