How many litres of a 30% alcohol solution should be added to 40 litres of a 60% alcohol solution to prepare a 50% solution ?

How many litres of a 30% alcohol solution should be added to 40 litres

1.	How many litres of a 30% alcohol solution should be added to 40 litres of a 60% alcohol solution to prepare a 50% solution ?
A.	0
B.	4
C.	0
D.	2
Answer» B. 4

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How many litres of a 30% alcohol solution should be added to 40 litres of a 60% alcohol solution to prepare a 50% solution ?

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