If (a + 3b) : (2a + 4b) = 3 : 5, then (a - b) : (a + b) is equal to: – McqOptions

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1.	If (a + 3b) : (2a + 4b) = 3 : 5, then (a - b) : (a + b) is equal to:
A.	2 : 1
B.	2 : 3
C.	3 : 2
D.	1 : 2
Answer» E.

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