Question

Find the cost of $3\frac{1}{3}$ metres of cloth at Rs $40\frac{1}{2}$ per metre.

Answer 1

$\begin{array}{l}\text{Cost of 1 meter cloth}=\text{Rs}40\frac{1}{2}\\ \text{Cost of}3\frac{1}{2}\text{meter cloth}=\text{Rs}(40\frac{1}{2}\times 3\frac{1}{2})\\ =\mathrm{Rs}(\frac{81}{2}\times \frac{7}{2})\\ =\mathrm{Rs}\frac{567}{4}\\ =\mathrm{Rs}141.75\end{array}$