In a class of 30 students, a bar graph shows their favorite colors. Blue was chosen by 15 students and red was chosen by 10 students. The rest of the students chose green. What fraction of the students chose a color that was NOT red?
- 1/3
- 1/2
- 2/3 (correct answer)
- 3/4
Explanation: The total number of students is 30. The number of students who chose red is 10. The number of students who chose a color that was not red is the total number of students minus those who chose red: 30 - 10 = 20. The fraction is 20/30, which simplifies to 2/3.