ObjectiveMcq
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If A : B = 3 : 5 and B : C = 4 : 7, what is A : C?
Correct Answer: A — 12 : 35
A : B = 3 : 5, B : C = 4 : 7. Make B common: A : B = 12 : 20, B : C = 20 : 35. So A : C = 12 : 35.