Question

A boy bought oranges at the rate of 11 for rs.10 and sold at 10 for rs.11.What is his gain or loss percent

Answer 1

Answer:

Step-by-step explanation:

C.P. of 11 oranges= Rs 10

C.P. of 1 orange = Rs 10/11

S.P. of 10 oranges= Rs 11

S.P. of 1 orange = Rs 11/10

Profit = (10/11)-(11/10)

        = (121-100)/110

        = 21/110

Profit% = (21/110)/(10/11)*100%

            = (21/100)*(11/10)*100%

            = 21%