Question

In a group of 28 students, 6 study both Art and Biology.

1 studies Biology but not Art.
1 studies neither subject.
Given that a randomly selected student studies Art, what is the probability the student studies Art and Biology?

Answer 1

3/13

Explanation:

There are 28 students. 1 studies biology but not art. 1 studies neither subject. Therefore, there are 26 students who study art.

Of the 26 students who study art, 6 also study biology. So the probability is 6/26, which reduces to 3/13.