16
First lets see the details it gives us:
-12 cup
-1 or less is trashed every 12
-1 coffee mug = 0.75 cups of coffee
Now that we know this we can do our work below:
12/0.75=16
The reason I divided the amount of cups the banquet holds by how much each coffee mug holds is to find how many people can get coffee. The reason for this is because the formula to this type of problem is shown below:
A/B=C
A meaning the amount
B meaning how much goes in each mug
C meaning how many mugs each person gets
Hope this helps!!