How many liters of a 40% alcohol solution must be mixed with 30 liters of a 70% solution to get a 55% solution?
A) 33 liters
B) 86 liters
C) 30 liters
D) 48 liters

Name: How many liters of a 40% alcohol solution must be mixed with 30 liters of a 70% solution to get a 55% solution? A) 33 liters B) 86 liters C) 30 liters D) 48 liters
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Question

Quizplus · Accepted Answer

To solve this, let x be the amount of 40% solution needed. The equation modeling the situation is 0.40x + 0.70(30) = 0.55(x + 30). Solving for x gives x = 30 liters.

How Many Liters of a 40% Alcohol Solution Must Be