Question

Alan has read 80​% of a book. He has 4 more pages to finish. How many pages are there in the​ book?

Answer 1

20 pages

Explanation:

If 100%-80%=4 pages

then 20%=4 pages (multipy both sides by 5)

100%=20

20 pages

Answer 2

20 pages

Step-by step:

4 pages = 20%

20(5)=100 so 4(5)= 100% of the book

4(5)= 20

the book has 20 pages.