Jerry had 24 action figures and 16 books on a shelf in his room. Later he added 24 more books to the shelf. How many more books than action figures were on his shelf?
Jerry had 24 action figures and 16 books on a shelf in his room. 

This means that there were a total of 40 items on the shelf. 

Later he added 24 more books to the shelf. 

This means that there are now a total of 64 items on the shelf. 

How many more books than action figures were on his shelf?

There are 24 more books than action figures on his shelf.