In a 600m race, A can beat B by 60 m and in a race of 500 m. B can beat C by25 m. By how many metres will A beat C in 400 m race
(a) 56 m
(b) 60 m
(c) 58 m
(d) 54 m
Sol:
A:B= 600:540= 10:9
B:C = 500:475 = 20:19
A:B:C = 200:180:171
A:C = in 400 m race= 400:342
= 58 m
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