SOLUTION: The purity of gold is measured in karats, with pure gold being 24 karats. Other purities of gold are expressed as proportional parts of pure gold.Thus, 18-karat gold is 18/24 , or

Question 1208997: The purity of gold is measured in karats, with pure gold being 24 karats. Other purities of gold are expressed as proportional parts of pure gold.Thus, 18-karat gold is 18/24 , or 75% pure gold; 12-karat gold is 12/24 , or 50% pure gold; and so on. How much 12-karat gold should be mixed with pure gold to obtain 60 grams of 16-karat gold?

Answer by timofer(104) (Show Source): You can put this solution on YOUR website!
How much 12-karat gold should be mixed with pure gold to obtain 60 grams of 16-karat gold?

If to mix x of 12 karat gold and result in 60 grams of 16 karat gold then
this would be with 60-x of the 24 karat gold.

This equation should be clear. Solve for x.

-----------40 grams of the 12-karat gold
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