Find the percentage of pure gold in ^@ 10 ^@-carat gold, if 24-carat gold is ^@100\%^@ pure gold.
Answer:
^@41\dfrac { 2 } { 3 }\%^@
- In ^@ 10 ^@-carat gold, pure gold is ^@ 10 ^@ parts out of ^@ 24 ^@ parts. @^ \begin{aligned} \therefore \space \text{Percentage of pure gold in it } = \bigg( \dfrac { 10 } { 24 } \times 100 \bigg)\% = \dfrac { 125 } { 3 } \% = 41\dfrac { 2 } { 3 }\% \end{aligned} @^ Hence, ^@ 10 ^@-carat gold is ^@ 41\dfrac { 2 } { 3 }\% ^@ pure.