Question

In a 500 metres race, B starts 45 metres ahead of A, but A wins the race while B is still 35 metres behind. What is the ratio of the speeds of A to B assuming that both start at the same time?

(a) 25: 21 (b) 25: 20 (c) 5:3 (d) 5:7

Answer 1

(a) Total distance = 500m

Distance covered by A= 500m

Distance covered by B = 500 – 45 – 35

= 500 – 80

= 420