Question

Lara reads 21 pages of a book every day amd finish the book in 30 days. If he reads 18 pages in a day, in how many days will he finish the book?​

Answer 1

21 pages ----> 30 days

(more pages ---> less days)

1 page ---> 30*21 days = 630 days

(less pages ---> more days)

18 pages ---> 630/18 = 35days

Answer 2

Lara reads in a day = 21 pages

By reading 21 pages per day he finishes the book in 30 days

To find In how many days will he finish the book by reading 18 pages per day

First we need to find how many pages does the books contains

21×30=630

The book contains 630 pages

If he reads 18 pages in one day out of 630 pages.Then,In how many days she would finish the book

→630÷18

=35

Lara would finish the book in 35 days if he read 18 pages in one day

may this helps you

bye