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

or,
⇒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.