48. At Brookfield High School, 55 seniors are enrolled in the sociology class and 40 seniors are enrolled in the drawing class. Of these seniors, 20 are enrolled in both the sociology class and the drawing class. How many of the 120 seniors enrolled at Brookfield High School are NOT enrolled in either the sociology class or the drawing class?

Answer and Explanation

Your Answer is

Correct Answer is K

Explanation

55 students go to the sociology class, 40 students to the painting class, and 20 students to both of them, then the number of people who go to any one of the two is the sum of the total number of people minus the overlapping part, that is, 55+ 40-20=75, the rest of the people did not go to both classes, that is, 120-75=45, so choose K