# SOLUTION: I have been working on this problem all night please help? How many liters of a 20% salt solution must be mixed with 30 liters of an 60% salt solution to obtain a 30% salt solut

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 Question 231931: I have been working on this problem all night please help? How many liters of a 20% salt solution must be mixed with 30 liters of an 60% salt solution to obtain a 30% salt solution?Answer by ankor@dixie-net.com(15622)   (Show Source): You can put this solution on YOUR website!How many liters of a 20% salt solution must be mixed with 30 liters of an 60% salt solution to obtain a 30% salt solution? : Let x = amt of 20% solution required : Write an amt of salt equation using the decimal equiv .20x + .60(30) = .30(x+30) .20x + 18 = .30x + 9 18 - 9 = .30x - .20x 9 = .10x x = x = 90 liters of 20% solution : : See if this is true .2(90) + .6(30) = .3(90+30) 18 + 18 = .3(120); confirms our solutio