Question 122
The per cent of pure gold in 14 carat gold is about 58.3%. A 14 carat gold ring weights 7.6 grams. How many grams of pure gold are in the ring?
The percentage of gold in 14 carat gold = 58.3 %
Weight of 14 carat gold = 7.6 g
Pure gold in 14 carat gold of 7.6 g = 7.6 ×58.3100=443.08100=4.431 g
Hence, pure gold in 7.6 g of 14 carat gold is equal to 4.431 g.