The given chart shows the number of students in Class 4, Class 5, Class 6 and Class 7 who got first class, second class and failed in the final examinations. What is the pass percentage of Class 4?

94.66% 91.23% 95% 90.45%

95%

Total number of  students in class 4 = 45 + 12 + 3 = 60 Number of passed students of class 4 = 45 + 12 = 57 Percentage of passed students = \(\frac{57}{60}\) × 100 = 95%