Question

Out of her monthly income, Mrs. Saxena spends 39% on rent and the rest 60% on household expenses. She saves ₹6300 per month, what is her total monthly income?

Answer 1

$$\begin{gathered} \mathrm{Let}\mathrm{the}\mathrm{total}\mathrm{monthly}\mathrm{income}=\mathrm{Rs}\mathrm{x} \\ \mathrm{Percentage}\mathrm{of}\mathrm{income}\mathrm{spend}\mathrm{on}\mathrm{rent}=39\% \\ \mathrm{Percentage}\mathrm{of}\mathrm{income}\mathrm{for}\mathrm{household}\mathrm{expenses}=60\% \\ \mathrm{Percentage}\mathrm{of}\mathrm{income}\mathrm{saved}=\left(100-39-60\right)=1\% \\ \mathrm{So},\mathrm{according}\mathrm{to}\mathrm{question}: \\ 1\%\mathrm{of}\mathrm{Rs}\mathrm{x}=\mathrm{Rs}6300 \\ \Rightarrow \frac{1}{100}\times \mathrm{x}=6300 \\ \Rightarrow \mathrm{x}=630000 \\ \mathrm{So},\mathrm{monthly}\mathrm{income}=\mathrm{Rs}6,30,000 \end{gathered}$$