500
Alice has a cup that is 1/4 of a foot high. Her friend Allison has a cup 3/4 of a foot high. For every 1/4 of a foot high both cups are, add 4 fluid ounces. If the capacity of Alice's cup is 4 fluid ounces, then how many gallons do they have together after adding 1 gallon to the total. Present your answer as a mixed number in simplest form.
1 1/8 gallons.