Three quarts of a bleaching chemical, Minum, contains 5 percent hydrogen peroxide and water. A different type of bleaching chemical, Maxim, which contains 20 percent hydrogen peroxide, will be mixed with the three quarts of Minum. How much of type Maxim should be added to the three quarts of Minum so that the resulting mixture contains 10 percent hydrogen peroxide?
Correct answer: A
Explanation
5% HydPerWater (HPW) of 3 quart of Minum= .10 q
20% of HPW of x q of Maxim = .2x
Total = .10 + .2x = .10 (3+x)
Solving , x=2 quart
A
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