A school has only four classes that contain 10, 20, 30, and 40 students respectively. The pass percentage of these classes are 20%, 30%, 60%, and 100% respectively. Find the pass % of the entire school.
- 56%
- 44%
- 66%
- None of these
Explanation
Step 1: Multiply the number of students in each class by their pass percentage
- Class 1: 10 students × 20% = 2 passed
- Class 2: 20 students × 30% = 6 passed
- Class 3: 30 students × 60% = 18 passed
- Class 4: 40 students × 100% = 40 passed
Step 2: Add total passed students and total students
- Total passed = 2 + 6 + 18 + 40 = 66
- Total students = 10 + 20 + 30 + 40 = 100
Step 3: Calculate the overall percentage
Pass % = (66 / 100) × 100 = 66%
Related MCQs
- 25% decrease
- 20% decrease
- 16.67% decrease
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- 20,000
- 10,000
- 2,000
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
