Question

Is 3 gallons equal , less than , or greater than 30 quarts ?

Answer 1

3 gallon X 4 quarts/gallon = 12 quarts, which is less than 30 quarts; so 3 gallons is less than 30 quarts.

Answer 2

3 gallons = <> that 30 quarts?

1 quart = 0.25 gallons

30 × 0.25 = 7.5

Which is more? 

3 gallons or 7.5 gallons?

7.5 gallons is more than 3.

3 gallons is less than 30 quarts.