Question

If a man purchase 11 orange for rupees 10 and sell 10 orange for rupees 11 how much profit or loss did he make

Answer 1

Cost price of 11 Oranges = Rs10 
Cost price of 110 Oranges = Rs 10*10 = Rs 100
Selling Price of 10 Oranges = Rs11 
Selling Price of 110 Oranges = Rs11*11 = Rs121 
The man purchases 110 Oranges for Rs100 and sales them for Rs121 
So the profiit is 21%