Final answer:
There are 10 different ways to buy 24 cookies when they are available in single units, packages of 4, or packages of 12.
Step-by-step explanation:
The question asks how many ways there are to buy 24 cookies if they are sold singly or in packages of 4 or 12. To find the solution, we can approach the problem by considering the combinations of packages and single cookies that make up the total of 24. Let's list the possible combinations:
- 6 packages of 4 cookies.
- 2 packages of 12 cookies.
- 1 package of 12 cookies and 3 packages of 4 cookies.
- 1 package of 12 cookies and 12 single cookies.
- 5 packages of 4 cookies and 4 single cookies.
- 4 packages of 4 cookies and 8 single cookies.
- 3 packages of 4 cookies and 12 single cookies.
- 2 packages of 4 cookies and 16 single cookies.
- 1 package of 4 cookies and 20 single cookies.
- 24 single cookies.
So, there are 10 different ways to buy 24 cookies based on the given package sizes.