Question

From a $72m$long rope , pieces of equal sizes are cut .If the length of one piece is $2\frac{2}{5}m,$ find the number of such pieces.

Answer 1

Let the number of such pieces be $x.$

According to question ,

$$\begin{gathered} \frac{12}{5}\times x=72 \\ x=72÷\frac{12}{5} \\ x=72\times \frac{5}{12} \\ x=\frac{72\times 5}{12} \\ x=6\times 5 \\ x=30 \end{gathered}$$

So, the number of pieces are $30.$