After reading 7/9 of a book , 40 pages are left .How many pages are there in the book

Question

asked Aug 16, 2021 126k views

2 Answers

Coffeduong · Answer 1 · 2021-08-20T15:50:11+0000

Answer: 180 pages

Explanation:

Let the equation be

x - 7/9x = 40

9x - 7x = 360

x = 360 / 2 = 180

The book has total 180 pages

Means he has read (180 - 40) = 140 pages