Question

a man bought 25 bananas for 100 and sold them at 20 for rs. 100. find his profit or loss percentage

Answer 1

Cost price of 25 bananas= rs.100
Selling price of only 20 bananas= rs. 100
selling price of 1 banana= 100 divided by 20= rs. 5
Selling price of 25 bananas = 5×5= 25= 100+25=125
Here S.P. is more so, profit occur
Profit= S.P.- C.P.
        = 125-100
        = 25
Profit%= Profit
               ______      ×100
                 C.P.
          =   25
              ____     ×100
                100  
            =25%