SOLUTION: If I have a 20% acid solution and a 50% acid solution, how many liters of each do I have to mix to get 600 liters of a 30% solution?

Question 360921: If I have a 20% acid solution and a 50% acid solution, how many liters of each do I have to mix to get 600 liters of a 30% solution?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Let A be the amount of 20% acid solution, and B the amount of 50% acid solution.
1.
.
.

2.
Multiply eq. 1 by -2 and add to eq. 2,

liters
Then from eq. 1,

liters
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