SOLUTION: How much water should be added to 24ML of 16% alcohol solution to reduce the concentration to 12%?

Question 617492: How much water should be added to 24ML of 16% alcohol solution to reduce the concentration to 12%?
Found 2 solutions by stanbon, josmiceli:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
How much water should be added to 24ML of 16% alcohol solution to reduce the concentration to 12%?
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water + water = water
0.84*24 + x = 0.88(24+x)
84*24 + 100x = 88*24 + 88x
12x = 4*24
x = 8 ml (amt. of water needed)
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Cheers,
Stan H.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = ml of water to be added
given:
ml alcohol in 16% solution
----------------

8 ml of water must be added
check:

OK
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