Solve the problem.How many liters of a 20%-alcohol solution must be mixed with 60 liters of a solution that is 70% alcohol to get a solution that is 30% alcohol?
A. 24 L
B. 30 L
C. 300 L
D. 240 L
Answer: D
Mathematics
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A. 
B. 
C. 0
D. 
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Mathematics