Question #N671
A survey of 100 students found that 60 students prefer to watch movies at home, 45 students prefer to watch movies at the theater, and 10 students prefer to watch movies at both home and the theater. What is the number of students who prefer to watch movies only at home?
A. 15
B. 25
C. 50
D. 60
Correct Answer is: C
The 10 students who prefer to watch movies at both home and the theater are counted twice in the total, once for home and once for the theater. To find the number of students who prefer to watch movies only at home, we subtract the number of students who prefer both from the total number of students who prefer to watch movies at home: 60 - 10 = 50.