Question

There are 100 students in 6th grade. Students in 6th grade can participate in one after-school music program. 22% chose chorus, 55% chose band and 10% chose orchestra. What percent of 6th graders are not participating in a music program?

Answer 1

13%

Explanation:

Do 22% + 55% + 10% to get 87%. Then you do 100 - 87 = 13. So 13% of students aren't in a music program.

Answer 2

13%

Explanation:

100 - 22/100 - 55/100 - 10/100 = 13/100 or 13%

or alternatively

22/100 + 55/100 + 10/100 = 87/100

100 - 87/100 = 13/100 or 13%

hope this helps