Question

A vendor bought bananas at 6 for rs. 10 and sold them at 4 for rs.6 find his gain or loss percentage

Answer 1

$\because {\text{C}}{\text{.P}}{\text{. of 6 bananas = Rs}}{\text{. 10}} \hfill \\ \therefore {\text{C}}{\text{.P}}{\text{. of 1 banana = Rs}}{\text{. }}\frac{{{\text{10}}}}{6} \hfill \\ \therefore {\text{C}}{\text{.P}}{\text{. of 4 bananas = Rs}}{\text{. }}\frac{{{\text{10}}}}{6} \times 4 = {\text{Rs}}{\text{. }}\frac{{{\text{20}}}}{3} = {\text{Rs}}{\text{. 6}}{\text{.67}} \hfill \\</p><p> \Rightarrow \,{\text{Loss\% = }}\frac{{{\text{C}}{\text{.P}}{\text{.}} - \,{\text{S}}{\text{.P}}{\text{.}}\,}}{{{\text{C}}{\text{.P}}{\text{.}}\,}} \times 100\,{\text{ = }}\frac{{{\text{6}}{\text{.67}} - \,{\text{6}}\,}}{{{\text{6}}{\text{.67}}\,}} \times 100 = \frac{{67}}{{6.67}}\, = 10.04\% \hfill$