SOLUTION: how many grams of pure gold must be added to one hundred grams of a twenty percent gold alloy to make an alloy that is thirty six percent gold?

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Question 577139: how many grams of pure gold must be added to one hundred grams of a twenty percent gold alloy to make an alloy that is thirty six percent gold?
Answer by solver91311(24713) About Me  (Show Source):
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There are 20 grams of pure gold in 100 grams of 20% alloy. There are grams of pure gold in grams of pure gold, and we want to have 36 grams of pure gold in grams of 36% alloy.

So:



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John

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