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

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1.	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
Answer» B. 3 : 4

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