SOLUTION: Two liters of 40% alcohol are mixed with 4 liters of another alcohol to form a 50 % alcohol solution. what is the strength of the added alcohol?

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Question 996520: Two liters of 40% alcohol are mixed with 4 liters of another alcohol to form a 50 % alcohol solution. what is the strength of the added alcohol?
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
Let x be the percentage of the added alcohol.
The setup looks like this:
2(40) + 4(x) = 6(50)
Simplifying and solving we have
80 + 4x = 300
4x = 220
x = 55%