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Solve the Problem $30 \%$ Alcohol Solution Must Be Mixed with 60 Liters of A Alcohol

Question 35

Multiple Choice

Solve the problem.
-How many liters of a $30 \%$ alcohol solution must be mixed with 60 liters of a $70 \%$ solution to get a $40 \%$ solution?

A) $18 \mathrm{~L}$
B) $180 \mathrm{~L}$
C) $240 \mathrm{~L}$
D) $24 \mathrm{~L}$

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