Question

A baker sold 40 muffins in one morning. 30% of the muffins were blueberry muffins. How many blueberry muffins did he sell?

Answer 1

The answer is fifteen

Answer 2

`\bf \begin{array} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{30\% of 40}}{\left( \cfrac{30}{100} \right)40}\implies 12`