What is the answer to this infamous "Common Core" question? The following question (number 15 of this test) has become infamous as a poor "Common Core" question. What is the correct answer?

Juanita wants to give bags of stickers to her friends. She wants to
  give the same number of stickers to each friend. She's not sure if she
  needs 4 bags or 6 bags of stickers. How many stickers could she buy so
  there are no stickers left over?


The question is terribly worded. Here is another solution which is consistent with the wording:
The only way Juanita can be unsure whether she needs 4 or 6 bags is if she has exactly 1 or 2 friends; any other number of friends does not divide evenly into both 4 and 6 bags and she would know in those cases that at least one choice was inappropriate. The question clearly states that Juanita has more than one friend, so she must have two. To ensure that no stickers are left over, she should buy the smaller of the two allowed choices, i.e. four bags.
