SOLUTION: a pharmacist has a 45% acid solution and a 35% acid solution. How many liters of it must be mixed to form 80 liters of a 40% acid solution?

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Question 567959: a pharmacist has a 45% acid solution and a 35% acid solution. How many liters of it must be mixed to form 80 liters of a 40% acid solution?
Answer by Alan3354(69443) About Me  (Show Source):
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a pharmacist has a 45% acid solution and a 35% acid solution. How many liters of it must be mixed to form 80 liters of a 40% acid solution?
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40 is the average of 45 & 35, so it's equal amounts.