Price of a book increases 15% successively (2 times). What is the new price of the book more compared to that of the old price?

if x = original price of book than

x+.15x = price of book after first markup = 1.15x and

1.15x+.15(1.15x) = price of book after 2nd markup or 1.3225x is the price of the book after both markups

so whatever the price of the book multiply it by 1.3225 and that will get you the price up the book marked up twice by 15%

if x = original price of book than

x+.15x = price of book after first markup = 1.15x and

1.15x+.15(1.15x) = price of book after 2nd markup or 1.3225x is the price of the book after both the markups

so whatever the price of the book multiply it by 1.3225 and that will get you the price up the book marked up twice by 15%