In every gram of gold, a goldsmith mixes 0.20 grams of silver and 0.10 grams of copper. What percent of gold is present?
Determine the quantity of pure gold in 50 grams of an alloy of pure gold and copper density of gold Copper and alloy are 19 gram centimetre cube 9 gram centimetre cube and 16 gram centimetre cube respectively
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?