If A : B = 1 : 3, B : C = 5 : 7, C : D = 9 : 7, then A : B : C : D =? – McqOptions

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1.	If A : B = 1 : 3, B : C = 5 : 7, C : D = 9 : 7, then A : B : C : D =?
A.	15 : 45 : 63 : 49
B.	15 : 49 : 45 : 63
C.	45 : 15 : 63 : 49
D.	49 : 15 : 45 : 63
Answer» B. 15 : 49 : 45 : 63

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