SOLUTION: A jeweler wants to combine a 60% gold alloy with a 20% gold alloy to make 500 grams of a 50% gold alloy. How many grams of the 20% gold alloy should be used?

Question 834588: A jeweler wants to combine a 60% gold alloy with a 20% gold alloy to make 500 grams of a 50% gold alloy. How many grams of the 20% gold alloy should be used?
Answer by josgarithmetic(39625) (Show Source): You can put this solution on YOUR website!
Extremely common mixture question, whatever alloy, whatever percentages, whether for alloy, tea, coffee, candies, chemical solutions,... too many.

See the lesson, "Mixing two concentrations for known amount of mixture", found in the lessons link in my profile.
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