Question

Ninety students auditioned for the school play. One-third of those who auditioned were cast, 6 in major roles. What fraction of those who were cast got major roles?

Answer 1

One-third of 90 is 90/3 = <<90/3=30>>30 students.
Six students were cast in major roles, so 6/30 = <<6/30=1/5>>1/5 of those cast got major roles. Answer: \boxed{\frac{1}{5}}.