Question

a group of army marches from the army camp to the market as a symbol of peace after curfew in town for last 7 days . if the army can travel only east or south,then the number of different possible route for the army to carry out the march past is:

Answer 1

$$\begin{gathered} \mathbf{Given}\mathbf{:}\mathrm{A}\mathbf{}\mathrm{group}\mathrm{of}\mathrm{army}\mathrm{marches}\mathrm{from}\mathrm{the}\mathrm{army}\mathrm{camp}\mathrm{to}\mathrm{the}\mathrm{market}\mathrm{as}\mathrm{a}\mathrm{symbol}\mathrm{of}\mathrm{peace}\mathrm{after}\mathrm{curfew}\mathrm{in}\mathrm{town}\mathrm{for}\mathrm{last}7\mathrm{days}. \\ \mathrm{If}\mathrm{the}\mathrm{army}\mathrm{can}\mathrm{travel}\mathrm{only}\mathrm{east}\mathrm{or}\mathrm{south}\mathrm{then}, \\ \mathrm{there}\mathrm{are}2\mathrm{possible}\mathrm{routes}\mathrm{only},\mathrm{either}\mathrm{south}\mathrm{or}\mathrm{east}. \end{gathered}$$