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Jason has 4 gallons of hand sanitizer that contains 25% alcohol. He wants to make a hand sanitizer that contains 50% alcohol. How many gallons of pure alcohol should he add?
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Jason has 4 gallons of hand sanitizer that contains 25% alcohol. He wants to make a hand sanitizer that contains 50% alcohol. How many gallons of pure alcohol should he add?

User Gil Tene
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1 Answer

2 votes
4 gallons = 25% alcohol
He wants 50% alcohol, therefore, let’s double the amount.

8 gallons = 50% alcohol

Answer is 4 more gallons should be added to have 50% alcohol
User Jeffmayeur
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