Question

A necklace is an alloy of gold and copper. If it is 20karats, how many percent is gold? How many % is copper?

Answer 1

Answer:

10% is the answer of this question

Answer 2

Given: A necklace is an alloy of gold and copper and it is $20K.$

We have to find the gold and copper percentage of the necklace.

As we know that Karat is basically a unit used to measure the purity of gold. Hence, the higher the karat, the purer the gold.

The twenty-carat gold, necklace contains$83.3$ percent pure gold and the remaining $16.7$% is copper.

Hence, the gold percentage$=83.3$% and copper percentage$=16.7$%.