How many ounces of a 60% salt solution must be added to 40 ounces of a 20 percent salt solution so that the resulting mixture is 40% salt?	Answers.
A) 16.67  B) 40  C) 50  D) 60.33  E) 70
let x=ounces of 60% salt solution to be added   .2*40+.6x=.4(40+x)   x=40   Amswer 40
<result>B</result>
How many ounces of a 60% salt solution must be added to 40 ounces of a 20 percent salt solution so that the resulting mixture is 40% salt?