To find the cost per book, divide the total cost by the number of books:
Cost per book = Total cost / Number of books
In this case, Miss Chen bought a box of 20 assorted books for $40.
Cost per book = $40 / 20
So, the cost per book is $2.
How to use the book sale, Miss Chen bought a box of 20 assorted books for $40. What was the cost per book?
1 answer