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If A:B = 6 : 8 and B:C = 5 : 10, then A:B:C is:
Question

If A:B = 6 : 8 and B:C = 5 : 10, then A:B:C is:

A.

3:4:8

B.

1:3:4

C.

4:3:2

D.

1:2:4

Correct option is A

Given: 

A : B = 6 : 8 

B : C = 5 : 10 

Solution: 

A : B = 6 : 8  = 3 : 4

B : C = 5 : 10 = 1 : 2 

First, we will make B equal

A : B =  3 : 4

B : C =  1×4\times4​: 2×4\times4 = 4 : 8

A : B : C = 3 : 4 : 8

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