The amount of water (in ml) that should be added to reduce 9 ml lotion, containing 50% alcohol, to a lotion containing 30% alcohol is ?

The amount of water (in ml) that should be added to reduce 9 ml lotion

1.	The amount of water (in ml) that should be added to reduce 9 ml lotion, containing 50% alcohol, to a lotion containing 30% alcohol is ?
A.	6 ml
B.	11 ml
C.	15 ml
D.	9 ml
Answer» B. 11 ml

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The amount of water (in ml) that should be added to reduce 9 ml lotion, containing 50% alcohol, to a lotion containing 30% alcohol is ?

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