In a 600 m race, the ratio of the speeds of two contestants A and B is 5 : 4. A has a start of 100 m. Then, A wins by: Choose the correct choice from the following options:
A) 200 m B) 20 m C) 403 m D) 20 m E) 23 m
To reach the winning post A will have to cover a distance of (600 - 100)m, i.e., 500 m.   While A covers 5 m, B covers 4 m.   While A covers 500 m, B covers 4 x 500/5	m	= 400 m.   Thus, when A reaches the winning post, B covers 400 m and therefore remains 200 m behind.   A wins by 200 m.   200 mnswer:	200 m
<result>A</result>
In a 600 m race, the ratio of the speeds of two contestants A and B is 5 : 4. A has a start of 100 m. Then, A wins by: