Question

The cost of \[7\frac{2}{3}\] metres of rope is Rs \[12\frac{3}{4} .\]

 Find its cost per metre.

 

Answer 1

\[\text{The cost of 7}\frac{2}{3} \text{metres of rope is Rs} 12\frac{3}{4} . \]
\[ \therefore \text{Cost per metre =} 12\frac{3}{4} \div 7\frac{2}{3}\]
\[ = \frac{51}{4} \div \frac{23}{3}\]
\[ = \frac{51}{4} \times \frac{3}{23}\]
\[ = \frac{153}{92}\]
\[ = \text{Rs}\ 1\frac{61}{92}\]