A Mixture of 9% Disinfectant Solution Is to Be Made

question 72

Multiple Choice

A mixture of 9% disinfectant solution is to be made from 15% and 8% disinfectant solutions. How much of each solution should be used if 70 gallons of 9% solution are needed?

• A)10 gallons at 15% solution, 60 gallons at 8% solution
• B)58 gallons at 15% solution, 12 gallons at 8% solution
• C)5 gallons at 15% solution, 65 gallons at 8% solution
• D)12 gallons at 15% solution, 58 gallons at 8% solution
• E)20 gallons at 15% solution, 50 gallons at 8% solution

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