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If a : (b + c) = 1 : 3 and c : (a + b) = 5 : 7, find the value of b : (c + a).
Question

If a : (b + c) = 1 : 3 and c : (a + b) = 5 : 7, find the value of b : (c + a).

A.

1 : 2

B.

3 : 4

C.

4 : 5

D.

3 : 5

Correct option is A

Solution:

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