The chart shows information gathered as part of the problem-solving process.
Number of Students

Category

Students with food allergies
24

Vegetarian students
6

Students on other restricted diets
3

Total number of students needing special diets
33

Students interested in alternative options
147

Total number of students at school
300

Based on the chart, what percentage of students at the school need special diets?

30 percent
40 percent
10 percent 20 percent