SOLUTION: how much water must be evaporated from a 300 L tank of a 2% salt solution to obtain a 5% solution?

Algebra ->  Customizable Word Problem Solvers  -> Finance -> SOLUTION: how much water must be evaporated from a 300 L tank of a 2% salt solution to obtain a 5% solution?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 30091: how much water must be evaporated from a 300 L tank of a 2% salt solution to obtain a 5% solution?
Answer by Paul(988) About Me  (Show Source):
You can put this solution on YOUR website!
Let the solution be x
2(300)=5(300-x)
600=1500-5x
-5x=-900
x=180

Hence, about 180L of solution must be evaporated.
PAul.