At a certain fitness center, are more than 1/6 of the members over 30

At a certain fitness center, are more than 1/6 of the members over 30 years of age? (1) Exactly 60 percent of male members are over 20 years of age, and of these, 35 are over 30 years of age. (1) Exactly 15 female members are over 30 years of (…)