Question

$\text{Oranges are bought at 6 for Rs.10 and sold at 4 for Rs. 9. Find the gain or loss per cet.}$

Answer 1

$\text{C.P. Of 6 oranges, = Rs. 10}\text{and C.P. of 1 orange}=Rs.\frac{10}{6}=Rs.\frac{5}{3}\text{S.P. of 4 oranges =Rs.9}\text{and S.P of 1 orange =}Rs.\frac{9}{4}\therefore \text{Gain = S.P - C.P.=}Rs.\frac{9}{4}-Rs.\frac{5}{3}=\frac{27-20}{12}=Rs.\frac{7}{12}Gain\%=\frac{Gain\times 100}{C.P.}=\frac{\frac{7}{12}\times 100}{\frac{5}{3}}=\frac{7\times 100\times 3}{12\times 5}=35\%Ans.$