Question

Jewelry marked 18- karat gold is 75% pure gold. How much pure gold is in an 18-karat gold necklace that weighs 258 grams

Answer 1

Answer:

The weight of pure gold in 258 g rams of 18- karat gold is 193.5 grams.

Step-by-step explanation:

The pure percentage in the gold = 75%

The weight of the gold purchased = 258 g

Now, here the pure gold percentage is 75% of 258 g

75% of 258 grams = $\frac{75}{100} \times 258$

or,  $\frac{3}{4} \times 258 = 193.5$

⇒75% of 258 grams  = 193.5 grams

Hence, the weight of pure gold in 258 g rams of 18- karat gold is 193.5 grams.