Ten liters of a 20% acid solution are mixed with 30 liters
Chapter 2, Problem 2.1.1.585(choose chapter or problem)
In Exercises 47–50, solve the problem without using a calculator.
Multiple Choice Ten liters of a 20% acid solution are mixed with 30 liters of a 30% acid solution. Which of the following is the percent of acid in the final mixture?
(A) 21%
(B) 22.5%
(C) 25%
(D) 27.5%
(E) 28%
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