Question

If
A: B = 7 : 5 and B: C = 9: 11 then A:B: C =
1) 55: 453:63
2) 63 : 45:55
4) 55: 63 : 45
5) 55 : 44: 83​

Answer 1

Answer:

A:B:C=63:45:55

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