Question

The price of a notebook is 20% less than the price of a book. By

what percent is the price of the book higher than the price of the
notebook?

HELP

Answer 1

125%

Explanation:

lets just say the book is $100. 20% less would be $80
now to go back to $100, we need to add $20 to $80
20 is 25% of 80, so add the extra 25% to 100% of 80