Question

Andrew borrows a book from a public library. He read some pages on day one. On day two, he reads twice the number of pages that he read on day one. On the third day, he reads six pages less than what he read on the first day. If he has read the entire book that contains 458 pages, how many pages did he read on day three?

Answer 1

One day one he read some number of pages. Let’s call this x.

On day two he read twice the number of pages he read on day 1. So on day 2 he read 2x pages.

On day three he read six pages less than what he read on day one. So on day 3 he read x - 6 pages.

So in total he read x + 2x + (x-6) pages. Set this equal to the total number of pages 458. Then solve for x. Finally, since it’s asking for the number of pages read on day three, calculate x - 6.