SOLUTION: Alan has 30 ounces of a 40% sugar solution. How much sugar should he add to make it a 45% solution?

Question 788841: Alan has 30 ounces of a 40% sugar solution. How much sugar should he add to make it a 45% solution?

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Alan has 30 ounces of a 40% sugar solution. How much sugar should he add to make it a 45% solution?
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Equation:
sugar + sugar = sugar
0.40*30 + 1*x = 0.45(30+x)
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40*30 + 100x = 45*30 + 45x
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55x = 5*30
x = (1/11)30
x = 2.7273 ounces (amt. pure sugar to add)
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Cheers,
Stan H.
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