Find the percentage of pure gold in 22 -carat gold, if 24 -carat gold is 100 pure.
Hint. 22 -carat gold contains 22 parts out of 24 parts.
percentage of pure gold in it
$=\left(\frac{22}{24} \times 100\right) \%$=$91 \frac{2}{3}%$

Given: 24- carat gold is 100% pure gold.

To do: To find the percentage of pure gold in 22 -carat gold.

Solution:

24-carat gold means 100% purity

So, 22-carat gold means
$100 \times \frac{22}{24}$

= $91  \frac{2}{3}%$

 or $91.67%$ purity

Therefore, the percentage of pure gold in 22 carat of gold is 91.67%

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Updated on: 10-Oct-2022

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