1.

A beats B by 10 meters in a 100 meters race. If B beats C by 20 meters in the same race, then A beats C by how many meters, in that race?

Answer»

28



Ratio of speeds of A and B is 100 : 90 = 10 : 9
Ratio of speeds of B and C is 100 : 80 = 10 : 8
Ratio of speeds of A, B and C is 100 : 90 : 72
So, A : C = 100 : 72
Hence, A BEATS C by 28 METERS.



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