Answer:
100g gold ring - 58g gold.
Explanation:
Assuming that the 100% represents the 100g of the gold ring, with a mathematical rule of three we can calculate the 58% of gold:
[tex]\begin{gathered} 100\%-100g \\ 58\%-x=\frac{58\%*100g}{100\%} \\ x=58g \end{gathered}[/tex]So, in 100g of the gold ring, there are 58g of gold.