Question

$24$ carat gold is known as pure gold. $22$ carat gold is prepared by mixing $22$ parts of pure gold with $2$ parts of either silver or copper. Now - a - days, $22$ carat hallmarked jewellery is marked by number $\left(916\right)$ which indicates its purity. Which number should be marked on $19$ carat jewellery. Write the number of correct alternative in the answer sheet.

• A. $913$
• B. $833$
• C. $792$
• D. $750$

Answer 1

Answer: (C)

$792$

$\frac{22}{24}=0.916$

Similarly, $\frac{19}{24}=0.792$

Hence, $792$ should be marked on $19$ carat jewellery.