A survey was conducted among 40 students to determine their enrollment in Art and Music classes. The results are shown in the table below.
| Enrolled in Music | Not enrolled in Music | |
|---|---|---|
| Enrolled in Art | 18 | 7 |
| Not enrolled in Art | 10 | 5 |
What percentage of the students surveyed are enrolled in exactly one of the two classes (Art or Music)?
17%
25%
42.5%
50%
