Question

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:

• A. 60 m
• B. 40 m
• C. 20 m
• D. 10 m

Answer 1

Answer: (C)

20 m

To reach the winning post A will have to cover a distance of (500 - 140)m, i.e., 360 m.
While A covers 3 m, B covers 4 m.
While A covers 360 m, B covers (43×360)m=480m.(43×360)m=480m. A wins by 20 m.