✔In 18K gold is 75 % gold mixed with 25 % of other metals like copper , silver etc.✔

✔Hope this will help you.......✔

Answer:

18 Karat gold has 75% of pure gold. 18 divided by 24 and multiplied by 100 will give this answer. 18/24 x 100. 22 karat gold has 91.6% pure gold and 916 is nothing but 91.5%.