Question

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

Answer 1

Suppose total pages were 'x'.

After reading 7/9 part, remaining pages =

= x - 7x/9

= (9x - 7x)/9

= 2x/9...●

Now, according to question,

2x/9 = 40

2x = 360

x = 180....●

Thus, total pages in the books = 180 pages.

●●●●●●●●●●●●●●●●●●

Hope it was helpful.