Part 32 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 32Sample questions from Part 32
Here are a few questions from this part. Take the full test to answer all 20 and get your score.
Sample question 1
Evaluate: 48 ÷ 6 × 2 + 3² − 4 × 5
- −1
- 41
- 5
- 25
Answer: 5
Exponent first: 3² = 9. Then ÷ and × left to right: 48 ÷ 6 = 8; 8 × 2 = 16; 4 × 5 = 20. Then 16 + 9 − 20 = 5.
Sample question 2
Evaluate: 15 − 3[2 + 4(5 − 2)] ÷ 7
- 9
- 12
- 6
- −3
Answer: 9
Innermost first: 5 − 2 = 3; 4 × 3 = 12; 2 + 12 = 14. Then 3 × 14 = 42; 42 ÷ 7 = 6. Finally 15 − 6 = 9.
Sample question 3
What is √(7² + 24²)?
- 17
- 49
- 25
- 31
Answer: 25
7² + 24² = 49 + 576 = 625, and √625 = 25. (Adding 7 + 24 = 31 first is wrong.)
Sample question 4
Evaluate: (−3)³ + (−2)⁴ − 5²
- −66
- −4
- −36
- 14
Answer: −36
(−3)³ = −27; (−2)⁴ = +16; 5² = 25. Total: −27 + 16 − 25 = −36.
Sample question 5
What is 25% of 480 plus 3/5 of 250?
- 240
- 225
- 300
- 270
Answer: 270
25% of 480 = 120; 3/5 of 250 = 150. Sum = 270.