There were a total of 50 guests in a movie screening of which half of the guests are women, 15 are men, and the rest are children. In the middle of the movie, 1/5 of the men and 4 children left. How many people stayed?
Being women half of the guests, there were 50/2 = <T>divide(50, 2)=25.0 women in the movie screening.
Adding the 15 men to the number of women guests, there were 25 + 15 = <T>add(25, 15)=40 men and women.
From a total of 50 guests, 50 - 40 = <T>subtract(50, 40)=10 were children.
Knowing 1/5 of the men left, 15/5 = <T>divide(15, 5)=3.0 men left.
Thus, 3 men + 4 children = <T>add(3, 4)=7 people left in all.
Therefore, 50 - 7 = <T>subtract(50, 7)=43 people stayed.
