Question

A reader has a read 180 pages of a book of 400 pages . What is the percentage of the pages not read ?​

Answer 1

No. of pages read= 180

Total no. of pages in the book= 400

so, required percentage= No. of pages read/ Total no. of pages * 100

= 180/400*100

=45%

Answer 2

Answer:

No. of pages read= 180

Total no. of pages in the book= 400  

so, required percentage= No. of pages read/ Total no. of pages * 100  

= 180/400*100  

=45%