Question

There are 12 sixth graders, 14 seventh graders,
and 7 eighth graders in a gym class. The gym
teacher randomly selects one student to collect
balls. In how many ways can choosing not a
seventh grader occur?

Answer 1

the answer for this question is 19 because you add them up and subtract the 7th graders

Answer 2

Answer:

There are 12 sixth graders, 14 seventh graders,  and 7 eighth graders in a gym class.

The gym  teacher randomly selects one student to collect  balls, then the number of choosing that will not pick a seventh grader is:

N = number of six graders + number of eight graders = 12 + 7 = 19 (ways)

Hope this helps!

:)