Question 203259
In a certain company, 30 percent of the men and 20 percent of the women
 attend night school. 
If 40 percent of all employees are men, what percent of all the employees
 attend night school?
:
Let x = total employees
then
.4x = men
and
.6x = women
:
In night school
.3(.4x) = .12x men in night school
.2(.6x) = .12x women in night school
---------------
total  = .24x,  24%  of employees in night school