Question

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

Answer 1

Answer:

Let x = total number of pages

After reading 7/9 of a book the 40 pages will left

then 40 pages =2/9

according to the question

(2/9)of(x)=40

=>x=40x9/2

=>x=360/2

=>x=180

Therefor total number of pages is 180

Answer 2

this way you can solve this problem