Question

Anyone want 98 points? Answer and explain the answer below.

18 students are surveyed about what they were wearing.

7 students are wearing a sweatshirt.
3 students are wearing a hat and a sweatshirt.
5 students are not wearing either a sweatshirt or a hat.

How many students are wearing a hat, but not a sweatshirt?

6
5
4
3

Answer 1

Question: Answer and explain the answer below. How many students are wearing a hat, but not a sweatshirt?

Answer: It is unknown because three of the students didn't survey so It could be no more than 3 because it says 7 students are wearing a sweatshirt, 3 students are wearing a hat and a sweatshirt, and 5 students are not wearing either a sweatshirt or a hat.

Hope it helps.

Answer 2

It will be easier to understand this using a venn diagram :