Question

If a dozen of eggs cost R 14.40,how many eggs can be bought for Rupees 37.20?

Answer 1

$$\begin{gathered} \mathrm{We}\mathrm{know}\mathrm{that}, \\ 1\mathrm{dozen}\mathrm{eggs}=12\mathrm{eggs} \\ \mathrm{So}, \\ \mathrm{Cost}\mathrm{of}12\mathrm{eggs}=\mathrm{Rs}14.40 \\ \mathrm{Cost}\mathrm{of}1\mathrm{egg}=\mathrm{Rs}\frac{14.40}{12}=\mathrm{Rs}1.2 \\ \mathrm{Therefore},\mathrm{Number}\mathrm{of}\mathrm{eggs}\mathrm{can}\mathrm{be}\mathrm{bought}\mathrm{by}\mathrm{rupees}37.20=\frac{37.20}{1.2}=\mathbf{31}\mathbf{}\mathbf{eggs} \end{gathered}$$