A survey of 600 students showed their favorite types of movies. If 25% preferred action movies, 35% preferred comedy, 15% preferred drama, and the rest preferred sci-fi, how many students preferred sci-fi movies?

✓ Correct Answer: Option C

First, find the total percentage for action, comedy, and drama: 25% + 35% + 15% = 75%. The remaining percentage for sci-fi is 100% - 75% = 25%. Calculate 25% of the total 600 students: 0.25 * 600 = 150 students.