Numerical Reasoning Aptitude 4 — Questions and Answers
Question 1: A company's revenue grew from $450,000 to $585,000. What is the percentage increase?
- 25%
- 28%
- 30% (Correct answer)
- 33%
Correct answer: 30%
Increase = 135,000; 135,000 / 450,000 x 100 = 30%.
Question 2: A sequence follows the pattern 3, 7, 15, 31, 63. What is the next term?
- 95
- 111
- 127 (Correct answer)
- 135
Correct answer: 127
Each term equals the previous term multiplied by 2 plus 1; 63 x 2 + 1 = 127.
Question 3: The mean of five numbers is 18. Four of the numbers are 12, 20, 24, and 16. What is the fifth number?
- 14
- 16
- 18 (Correct answer)
- 20
Correct answer: 18
Total = 18 x 5 = 90; known sum = 72; fifth number = 90 minus 72 = 18.
Question 4: A cylindrical tank has a radius of 3 feet and height of 10 feet. Approximately how many cubic feet can it hold? (Use pi = 3.14)
- 235.5
- 254.3
- 282.6 (Correct answer)
- 301.4
Correct answer: 282.6
Volume = pi x r squared x h = 3.14 x 9 x 10 = 282.6 cubic feet.
Question 5: Two numbers are in the ratio 7:3. If their sum is 150, what is the larger number?
- 90
- 100
- 105 (Correct answer)
- 120
Correct answer: 105
Larger = (7/10) x 150 = 105.
Question 6: A laptop costs $800. A 15% sales tax is applied, then a $50 rebate is given. What is the final price?
- $850
- $870 (Correct answer)
- $890
- $920
Correct answer: $870
Price after tax = 800 x 1.15 = $920; after rebate = $920 minus $50 = $870.
Question 7: A car depreciates 15% each year and originally cost $20,000. What is its value after 2 years?
- $14,450 (Correct answer)
- $14,500
- $15,000
- $15,300
Correct answer: $14,450
Value = 20,000 x 0.85 x 0.85 = 20,000 x 0.7225 = $14,450.
Numerical Reasoning Aptitude 4
A company's revenue grew from $450,000 to $585,000.
What is the percentage increase?