Comments

Challenge 10 Answer


How many pages does the book have?

Being N the number of pages of the book, we have:

N / 5 = (N / 3) -16

(N / 5) - (N / 3) = -16

(3N-5N) / 15 = -16

3N-5N = -16 * 15

-2N = -240

N = 120

The book has 120 pages!

Back to statement