In a leading retail store, the sale of clothes of different material during winter is as shown in the pie chart : The ratio of the sales of wollen clothes to that of leather is $3:2$, what is the percentage of sales of leather ?

Question

$\begin{array}{1 1} (a)\;36\% \\ (b)\; 38\% \\ (c)\;40\% \\ (d)\; 24\% \end{array}$