Question

After reading 4/9 of a book, 30 pages are left . How many pages are there in the book

Answer 1

x-$\frac{4x}{9}$=30
9x-4x/9=30
5x/9=30
5x=270
x=54

Answer 2

the answer is 40/3 or 13.3 or 13 1/3