Most jewellary is made of 22 carat gold. What is the percentage of golid in it ?

Explanation

24 carat gold is considered to have 999.99 parts of gold per 1000 g. Therefore, one carat is taken as one part of 24. That means 22 carat gold is 22 parts per 24 parts. Accordingly, parts of gold in 1000 g of 22 carat gold can be calculated. From this, percentage can be found out.
Amount of gold in 1000 g of 22 carat gold = `22/24 xx 1000 = 916.3` g
Percentage of gold = 91.6%.