Question

Raymond has 120 books on his bookshelf that he has not read. He plans on reading 3 books per week until there are only 24 books that he still needs to read.

Which equation can be used to determine the number of weeks, w, it will take Raymond to have only 24 books left, and how many weeks will it take?

Answer 1

let 1 book be 'x'

hence raymond has 120x books to read.

he is planning to keep 24 books i.e. 24x unread

hence 120x -24x =96x.

raymond will read 3 books per week

hence 96x ÷ 3x = 32

hence Raymond will take 32 weeks to read the books and still leave 24 books unread.