Percentage of gold in 14 carat gold is :

Percentage of gold in 18 carat gold is:

percentage of gold in 21.6 carat gold is

percentage of gold in 21.6 carat gold is

The per cent of pure gold in 14 carat gold is about 58.3%. A 14 carat gold ring weighs 7.6 grams. How many grams of pure gold are in the ring?

Find the percentage of pure gold in 22-carat gold, if 24-carat gold is 100% pure.