Patrick purchased 12 books. He needed 4 books for each of his projects at school. How many projects did he have?
To find out the number of projects Patrick had, we can divide the total number of books he purchased by the number of books needed for each project.
Patrick purchased 12 books and needed 4 books for each project.
So, the number of projects Patrick had can be calculated by dividing 12 by 4:
Number of projects = 12 / 4 = 3
Therefore, Patrick had 3 projects.