A) \[18%\] gold
B) \[24%\] gold
C) \[75%\] gold
D) \[60%\] gold
Correct Answer: C
Solution :
The weight of gold in jewellery is expressed in carats. It simply implies the number of parts by weight of gold in 24 parts by weight of the alloy. Pure gold is 24 carats. 18 carat gold means that it contains 18 parts by weight of pure gold in 24 parts by weight of the alloy. Percentage of gold \[=\frac{18}{24}\times 100\] Percentage of gold = 75%
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