Solve the Problem. -A Chemist Needs 12 Liters of a 50% Salt Solution

question 2

Multiple Choice

Solve the problem.
-A chemist needs 12 liters of a 50% salt solution. All she has available is a 20% salt solution and a 70% salt solution. How much of each of the two solutions should she mix to obtain her desired solution?

• A) 6 liters of the 20% solution; 6 liters of the 70% solution
• B) 3.6 liters of the 20% solution; 8.4 liters of the 70% solution
• C) 4.8 liters of the 20% solution; 7.2 liters of the 70% solution
• D) 2.4 liters of the 20% solution; 9.6 liters of the 70% solution

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