Respuesta :

[tex]\begin{gathered} x=\text{ Total muffins} \\ \frac{3}{x}=\frac{1}{6} \\ Solving\text{ x} \\ 3=\frac{1}{6}\ast x \\ x=3\div\frac{1}{6} \\ x=\frac{3\ast6}{1}=18 \\ x=18 \\ They\text{ served 18 muffins} \end{gathered}[/tex]