SOLUTION: Help please in this problem: Mixture Problem A radiator contains 25 liters of water and antifreeze solution, of which 60% is antifreeze. How much of this solution should be drai

Question 683803: Help please in this problem: Mixture Problem
A radiator contains 25 liters of water and antifreeze solution, of which 60% is antifreeze. How much of this solution should be drained and replaced with water for new solution to be 40% antifreeze?
Ans. is 8.33 liters, but I dont know the solutions..
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
The liters of antifreeze in the radiator is
liters
Let = the number of liters to be drained and replaced with water
= liters of antifreeze in the mixture that is drained
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The key is that you end up with the same liters you started with

liters
------------------
check answer:

OK
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