Question

travelling 900 km by rail costs RS.280. what would be the fare for journey of 360 km when a person travels by the same class ?

Answer 1

$$\begin{gathered} \mathrm{Given},\mathrm{cost}\mathrm{of}\mathrm{travelling}900\mathrm{km}\mathrm{by}\mathrm{rail}=\mathrm{Rs}280 \\ \mathrm{So},\mathrm{cost}\mathrm{of}\mathrm{travelling}1\mathrm{km}\mathrm{by}\mathrm{rail}=\mathrm{Rs}\frac{280}{900} \\ \mathrm{So},\mathrm{cost}\mathrm{of}\mathrm{travelling}360\mathrm{km}\mathrm{by}\mathrm{rail}=\mathrm{Rs}\frac{280}{900}\times 360=\mathrm{Rs}112 \\ \mathrm{Hence},\mathrm{fare}\mathrm{for}\mathrm{journey}\mathrm{of}360\mathrm{km}\mathrm{is}\mathrm{Rs}112. \end{gathered}$$