Question 1088504
Let n be the amount of 50% solution to be used. Then the 25% solution would be 5n-20. So:
.50n+.25(5n-20)=.30(n+5n-20)
.50n+1.25n-5=.30n+1.5n-6
.05n=1
n=20
They need 20 liters of 50% solution and 80 liters of 25% solution
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