A box of 20 Crunchy Munchy cookies costs $2.50 and a box of 40 Crunchy Munchy cookies costs $4.00. One quart of milk costs $1.50. Which of the following options costs less?

Which options?

To determine which option costs less, we need to compare the costs of each option - buying only cookies or buying cookies with milk.

Option 1: Buying only cookies -
The price of a box of 20 Crunchy Munchy cookies is $2.50.
So, the price per cookie in this option is $2.50 divided by 20 cookies = $0.125 per cookie.

Option 2: Buying cookies with milk -
The price of a box of 40 Crunchy Munchy cookies is $4.00.
So, the price per cookie in this option is $4.00 divided by 40 cookies = $0.10 per cookie.

Additionally, we need to factor in the cost of one quart of milk, which is $1.50.

Now, let's calculate the total cost of each option:

Option 1: Buying only cookies -
20 cookies at $0.125 per cookie equals 20 * $0.125 = $2.50.

Option 2: Buying cookies with milk -
40 cookies at $0.10 per cookie equals 40 * $0.10 = $4.00.
Adding the cost of one quart of milk ($1.50) to this gives us $4.00 + $1.50 = $5.50.

Comparing the total costs:
Option 1 (buying only cookies): $2.50
Option 2 (buying cookies with milk): $5.50

Therefore, option 1 (buying only cookies) costs less than option 2 (buying cookies with milk).