Answer: There were 38 cans in each box.
(You probably already knew the answer, but I'm bored so I'll explain it anyway).
To find the answer, you'd have to add up the total amount of cans brought into Ms. Walker's class. Since the class is composed of both girls AND boys, you'd have to add the two together.
57+57=114
Since there are three boxes, and the cans are all collectively being divided into the boxes evenly, you'd divide 114 by 3.
114/3= 38.
So, there would be 38 cans per box.
