Mason read 12 books in 4 months. If he reads at a constant rate, how many books did he read each month? Give your answer as a whole number or a FRACTION in simplest form.
Mason read 12 books in 4 months.
To find how many books he read each month, we divide the total number of books by the total number of months:
12 books ÷ 4 months = 3 books per month
Therefore, Mason read 3 books each month.