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Races and Games - General Aptitude

Q1:

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

ANS: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 4 x 360 m = 480 m.
3
Thus, when A reaches the winning post, B covers 480 m and therefore remains 20 m behind. A wins by 20 m.