What is bigger A 15 gallons B 260 cups or A 80 quarts?

To compare the volumes, we need to convert everything to the same unit.

• 15 gallons is equivalent to 60 quarts (since 1 gallon = 4 quarts).
• 260 cups is equivalent to 16.25 gallons (since 1 gallon = 16 cups).
• 80 quarts is equivalent to 20 gallons.

Thus, 80 quarts (20 gallons) is the largest, followed by 15 gallons, and then 260 cups.