Answer:
You can fill 27 glasses with milk
Explanation:
Amount of servings, which is number of cartons times serving per carton, divided by the amount the glass can hold.
Let's solve the amount of servings:
Serving per carton: 1 1/2 is 3/2
Number of cartons: 12 (dozen)
12*3/2 = 18 servings
Now divide it by the amount the glass can hold:
18 ÷ 2/3 = 18*3/2 = 27 glasses