Q. If A : B = 3 : 4, B : C = 5 : 7 and C : D = 8 : 9, then the ratio A : D is: - Study24x7
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Q. If A : B = 3 : 4, B : C = 5 : 7 and C : D = 8 : 9, then the ratio A : D is:

A

3 : 7

B

7 : 3

C

21 : 10

D

10 : 21

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