Respuesta :
[tex]\text{The number x is 15}\%\ \text{of 60}\\\\\begin{array}{ccc}60&-&100\%\\x&-&15\%\end{array}\Rightarrow\dfrac{60}{x}=\dfrac{100}{15}\to\boxed{B.\ \dfrac{15}{100}=\dfrac{x}{15}}[/tex]
[tex]\text{The number x is 15}\%\ \text{of 60}\\\\\begin{array}{ccc}60&-&100\%\\x&-&15\%\end{array}\Rightarrow\dfrac{60}{x}=\dfrac{100}{15}\to\boxed{B.\ \dfrac{15}{100}=\dfrac{x}{15}}[/tex]