Question

At the school fair 70% of the people are under 16 years old 1/3 of the people remaining are teachers if there are 21 teachers at the fair how many people are in the theater?

Answer 1

210

Explanation:

let x = number of people in the theater

70% are <16, so 30% are >16

0.30(x)(1/3) = 21

0.30x = 63

x = 63/0.30 = 210