<PRE><B>Question 532395</B>
A pharmacist has a 40% acid solution and a 25% acid solution. 
How many liters of each must be mixed to form 147 liters of 
a 34% acid solution?
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Equation:
acid + acid = acid
0.40x + 0.25(147-x) = 0.34*147
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Multiply thru by 100 to get:
40x + 25*147 - 25x = 34*147
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15x = 9*147
x = (3/5)(147)
x = 88.2 liters (amt. of 40% solution needed)
147-x = 58.8 liters (amt. of 25% solution needed)
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Cheers,
Stan H.
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