SOLUTION: A guy has 12 gallons of an 8% solution and adds a 20% solution that results in a 16% solution. How many gallons of 20% did he add?

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: A guy has 12 gallons of an 8% solution and adds a 20% solution that results in a 16% solution. How many gallons of 20% did he add?      Log On