Question

If A : B = 5 : 7 and B : C = 3 : 5 what is the ratio of A : B : C ?

Answer 1

Answer:

A:B=5:7 the value of B is 7. In B:C=3:5 the value of B is 3. So to bring about the similarity in the values of B we have to multiply 5:7 with 3 both numerator and denominator and same process for 3:5 where it is multiplied by 7. Then we get A:B=15:21 & B:C=21:35. Then the value of A:B:C=15:21:35

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