A seller bought an object at 40 % discount in printed price. He made price sticker for the object in which
he wrote the price 20 % greater than the printed price. He gave 40 % discount to a customer on this price.
How many % profits did he get on his investment?
Let the printed price of the object is 100
Price in which, seller bought it = 60 % of 100 = 60
Sticker price = 120 % of 100 = 120
Selling price = 60 % of 120 = 72
% profit on investment = 12*100/60 = 20