In a 500 m race, the ratio of the speeds of two contestants A and B is 3 : 4. A has a start of 155 m. Then, A wins by:  Choose one
A) 60 m  B) 20m  C) 40 m  D) 20m  E) 23m
To reach the winning post A will have to cover a distance of (500 - 155)m, i.e., 345 m.   While A covers 3 m, B covers 4 m.   While A covers 345 m, B covers 4 x 345/3	m	= 460 m.   Thus, when A reaches the winning post, B covers 460 m and therefore remains 40 m behind.   A wins by 40 m.   Answer:	40 m
<result>C</result>
In a 500 m race, the ratio of the speeds of two contestants A and B is 3 : 4. A has a start of 155 m. Then, A wins by: