Question

on field day, 1/10 of the students in Mrs. Brown's class competes in jumping events, 3/5 of the student competes in running events, and 1/10 competed in throwing events. what part of mrs. brown's class did not compete in jumping, running or throwing events?

Answer 1

I think the answer is 2/10

Answer 2

1/10 + 1/10 = 2/10
10 / 5 = 2
3/5 = 6/10
2/10 + 6/10 = 8/10
10/10 - 8/10= 2/10