Question

If the cost of a dozen soaps is Rs 153.60, what will be the cost of 15 such soaps

? [In unitary method]

Answer 1

Dear Student,

$$\begin{gathered} The\cos tofadozensoaps=Rs.153.60 \\ Then,the\cos tofonesoap=\frac{153.60}{12}=Rs.12.8 \\ Now, \\ the\cos t15soap=12.8\times 15=Rs.192 \end{gathered}$$

Regards.