# SOLUTION: How much 40% acid solution should be mixed with 2 gallons of 60% acid solution in order to get 50% acid solution? Set up an equation to solve.

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 Click here to see ALL problems on Mixture Word Problems Question 117612: How much 40% acid solution should be mixed with 2 gallons of 60% acid solution in order to get 50% acid solution? Set up an equation to solve.Answer by stanbon(57377)   (Show Source): You can put this solution on YOUR website!How much 40% acid solution should be mixed with 2 gallons of 60% acid solution in order to get 50% acid solution? Set up an equation to solve. -------------- Amt of 60% solution = 2 gallons ; amt of active ingredient = 0.6*2 = 1.2 gallons --------------- Amt of 40% solution = x gallons; amt of active = 0.4x gallons --------------------------- Amt of mixture = (x+2) gallons; amt of active = 0.5(x+2) gallons ------------------- EQUATION: active + active = active 1.2 + 0.4x = 0.5(x+2) 1.2 + 0.4x = 0.5x + 1 0.1x = 0.2 x = 2 gallons (amount of 40% solution needed in the mixture) ============= Cheers, Stan H.