In a 600 m race A beats B by 60 m and C by 105 m. By how many metres will B beat C in a 600 m race?
Correct answer C. 50 m
Explanation
When A runs 600 m, B runs 540 m and C 495 m. So when B runs 600 m, C runs 600 × 495/540 = 550 m. B wins by 50 m.
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