Question

By selling 20 books,a woman gains an amount equal to the selling price of 2 books. Find her profit percent.

Answer 1

Let the selling price of each book=Rs.x
Selling price of 20 cassettes=Rs.20x
Profit gained=Rs.2x
CP=SP-Profit
CP=18x
Profit%=(profit/CP)*100
Profit%=(2x/18x)*100
Profit=11.11%