In a 500 m race, the ratio of the speeds of two contestants A and B is 3 : 4. A has a start of 140 m. Then, A wins by: Choices.
A) 20 m	B) 10 m	C) 40 m	D) 30 m	E) 40 m
To reach the winning point , A will have to cover a distance of 500 - 140= 
<gadget id="calculator">500 - 140</gadget>
<output>360</output>
360 metre   ratio of the speeds of two contestants A and B is 3 : 4   i.e., when A covers 3 metre, B covers 4 metre.   When A covers 360 metre, B covers 4/3×360= 480 metre.   Remaining distance B have to cover = 500-480= 
<gadget id="calculator">500-480</gadget>
<output>20</output>
20 metre   20 m wins by 20 metre   20 mnswer is20 m
<result>A</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 140 m. Then, A wins by: