Question

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

Answer 1

Step-by-step explanation:

Given :-

pages read = 7/9 of a book

pages left = 40

To find:-

total pages in the book

solution :-

let number of pages be x

7/9x + 40 = x

40 = x - 7/9x

40 = (9x-7x) /9

360 = 2x

x = 180

Answer 2

Answer:

180 pages

Step-by-step explanation:

1)as there are total 9 parts

2)after reading 7 parts there are 2parts tensing and 40 pages left.

3)so 2-->40=40÷2 gives one part =20 pages.

so overall pages are 9×20=180