A Mixture of 10% Disinfectant Solution Is to Be Made

question 19

Multiple Choice

A mixture of 10% disinfectant solution is to be made from 14% and 7% disinfectant solutions. How much of each solution should be used if 70 gallons of 10% solution are needed?

• A) 40 gallons at 14% solution, 30 gallons at 7% solution
• B) 38 gallons at 14% solution, 32 gallons at 7% solution
• C) 25 gallons at 14% solution, 45 gallons at 7% solution
• D) 32 gallons at 14% solution, 38 gallons at 7% solution
• E) 30 gallons at 14% solution, 40 gallons at 7% solution

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