In what ratio should 20% ethanol solution be mixed with 40% ethanol solution to obtain a 28% ethanol solution?

In what ratio should 20% ethanol solution be mixed with 40% ethanol so

1.	In what ratio should 20% ethanol solution be mixed with 40% ethanol solution to obtain a 28% ethanol solution?
A.	2 ∶ 3
B.	8 ∶ 5
C.	3 ∶ 2
D.	5 ∶ 8
Answer» D. 5 ∶ 8

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In what ratio should 20% ethanol solution be mixed with 40% ethanol solution to obtain a 28% ethanol solution?

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