Question

A man buys 3 oranges for Rs.4 and sells 4 oranges for Rs.6.Find his Gain or loss percent.

Answer 1

Cost price of 3 oranges = Rs.4
So, cost price of 1 orange = Rs. $\frac{4}{3}$ = Rs.1.33

Selling price of 4 oranges = Rs.6
So, selling price of 1 orange = Rs.$\frac{6}{4}$ = Rs.1.50
So gain amount = Selling price of 1 orange - cost price of 1 orange = Rs.1.50 - Rs.1.33 = Rs.0.17
Therefore gain percentage = $\frac{\mathrm{gain}\mathrm{amount}\times 100}{\mathrm{cost}\mathrm{price}}=\frac{0.17\times 100}{1.33}=12.78\%$