alleryAn 80 L mixture is 25% alcohol. How much water should be added to reduce the alcohol to 20%?
A10 L
B15 L
C20 L
D25 L
Answer & Solution
Correct answer: C. 20 L
Alcohol is 20 L, and 20 L is 20% of 100 L, so 20 L of water is added.
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