Part 21 of our Numerical Ability reviewer has 20 practice questions in the style of the Civil Service Exam. Answer them in order, read the explanation after each one, and check your score against the 80% passing mark at the end. Questions and choices are reshuffled every time you retake the part.
Start Part 21Sample questions from Part 21
Here are a few questions from this part. Take the full test to answer all 20 and get your score.
Sample question 1
An LGU employee processed the following numbers of documents per day over 9 days: 46, 23, 24, 35, 57, 50, 49, 16, 51. After removing the lowest value and the two highest values, what is the median of the remaining values?
- 40.5
- 39.5
- 37.83
- 46
Sample question 2
The numbers of trees planted by 7 barangay volunteers are: 10, 24, 7, 17, 23, 5, 19. If every value is multiplied by 2, what is the new mean?
- 15
- 29
- 30
- 17
Sample question 3
The table shows the scores of 15 examinees in a mock Civil Service test.
| Score | Number of examinees |
|---|---|
| 60 | 1 |
| 75 | 7 |
| 85 | 6 |
| 90 | 1 |
- 80
- 77.5
- 77
- 79
Sample question 4
The mean score of 6 examinees is 85. When the score of one examinee, 55, is removed, what is the mean of the remaining 5 scores?
- 92
- 90
- 91
- 85
Sample question 5
The recorded mean score of 30 students was 67. Later, two scores were found to be wrongly entered: 61 should have been 78, and 89 should have been 66. What is the corrected mean?
- 67.57
- 66.8
- 61
- 67