Correct Answer - Option 4 : 53%
Given:
No. of students in the five sections are 25, 30, 40, 45, 60
Percentage of pass students in each section are 20% , 30%, 35%, 40%, 100% respectively
Formula Used:
% of pass student = no. of student pass/ total no. of student × 100
Calculation:
Let the following section be A, B, C, D, E
No. of students pass in section A = 25 × 20 /100 = 5
No. of students pass in section B = 30 × 30/100 = 9
No. of students pass in section C = 40 × 35/100 = 14
No. of students pass in section D = 45 × 40/100 =18
No. of students pass in section E = 60 × 100/100 = 60
Total no. of students pass in all section = 5 + 9 + 14 + 18 + 60 = 106
Total no. of student = 25 + 30 + 40 + 45 + 60 = 200
Pass % of entire class = 106/200 × 100 = 53%
The pass percentage of the entire class is 53%