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| Math Central | Quandaries & Queries |
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Question from Jessica, a student: How many gallons of distilled water must be mixed with 50 gallons of 30% alcohol solution to obtain a 25% solution? |
Hi Jessica,
You have 50 gallons of a 30% alcohol solution so you have 30/100 
50 = 15 gallons of alcohol. How many gallons of distilled water would you need to add to this 15 gallons of alcohol to obtain a 25% alcohol solution?
Penny
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