Mathematics

Talon Arnold

12 February, 14:00

I know the answer but my teacher told me how and why but i dont know so can some one tell me how and why

There are two sizes of milk to choose from at the grocery store. A 3-quart carton cost $ 2.78 while a 4-quart carton cost 3.87 which is the more economical buy and why

answer choices are

a. the 3quart because its priced at 93 cents a quart

b. the 3quart because its priced at 96 cents a quart

c. the 4quart because its priced at 97 cents a quart

d. the 4quart because its priced at 92 cents a quart