Question

On December 1st Miss Lait went to the grocery store and brought 2 quarts of milk. On December 7th, she brought three times as much milk. How much milk did she buy on December 7th? ( type the best answer and explain.)
A. less than a gallon

B. exactly one gallon

C. more than a gallon

Answer 1

The appropriate choice is ...
  C. more than a gallon

_____
3 times 2 quarts is (3*2) = 6 quarts. "Quart" is a sort of mnemonic or short-form of "quarter gallon". As you might imagine, there are 4 quarter-gallons (quarts) in a gallon, so 6 quarts will be more than a gallon.