Question

Prateek earns Rs.20000 per month.He spends 2/5th of his income on food, 5/12 of the remaining on the education of children and 3/7 of the remainder on the house rent. How much money is still left with him?

Answer 1

$$\begin{gathered} \mathrm{Hi}, \\ \mathrm{Monthly}\mathrm{income}=20,000 \\ \mathrm{money}\mathrm{spent}\mathrm{on}\mathrm{food}=\frac{2}{5}\times 20000=8000 \\ \mathrm{so}\mathrm{remaining}\mathrm{money}=20,000-8000=12,000 \\ \mathrm{so}\mathrm{money}\mathrm{spent}\mathrm{on}\mathrm{education}=\frac{5}{12}\times 12,000=5000 \\ \mathrm{so}\mathrm{remaining}\mathrm{amount}=12,000-5000=7000 \\ \mathrm{so}\mathrm{money}\mathrm{spent}\mathrm{on}\mathrm{rent}=\frac{3}{7}\times 7000=3000 \\ \mathrm{so}\mathrm{money}\mathrm{left}\mathrm{with}\mathrm{him}=7000-3000=\mathrm{Rs}.4000 \end{gathered}$$