In a survey of parents, exactly 5/6 of the mothers and 3/4 of the fathers held full-time jobs. If 60 percent of the parents surveyed were women, what percent of the parents did not hold full-time jobs? Choose the correct choice from the following options
A) 12%  B) 15%  C) 18%  D) 20%  E) 25%
Fathers without full-time jobs are 1/4*2/5 = 2/20 of all the parents surveyed.   Mothers without full-time jobs are 1/6*3/5 = 1/10 of all the parents surveyed.   The percent of parents without full-time jobs is 2/20 + 1/10 = 1/5 = 20%   The answer is 20%.
<result>D</result>
In a survey of parents, exactly 5/6 of the mothers and 3/4 of the fathers held full-time jobs. If 60 percent of the parents surveyed were women, what percent of the parents did not hold full-time jobs?