The ratio of pure gold in 18-carat gold is

The ratio of pure gold in 18-carat gold is : 

(1) 60% 

(2) 75% 

(3) 80% 

(4) 90% 


Answer: (2) There are various grades of gold purity, determined by the ratio of their alloy composition and rated by a karat system. Typical karat purities range from 10 karats to 24 karats (pure gold), with a wide variety of usage from country to country. 18 karat gold consists of 75% gold and 25% alloy metals. 18 karat gold has been found to be the perfect balance between gold purity and strength. Brilliance offers a variety of exquisite 18 karat gold jewelry.

The ratio of pure gold in 18-carat gold is :   (1) 60%   (2) 75%   (3) 80%   (4) 90%


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