The ratios of acid and water in vessels A and B are 4 : 5 and 7 : 5, r – McqOptions

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1.	The ratios of acid and water in vessels A and B are 4 : 5 and 7 : 5, respectively. In what ratio should the contents of A and B be mixed to get a solution containing 50% acid?
A.	4 : 3
B.	2 : 3
C.	3 : 2
D.	3 : 4
Answer» D. 3 : 4

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