General Quantitative Aptitude Basics 4 — Questions and Answers
Question 1: A bag contains 5 red, 3 blue, and 2 green marbles. What is the probability of picking a blue marble?
- 1/5
- 3/10 (Correct answer)
- 2/5
- 1/2
Correct answer: 3/10
Probability = 3 blue ÷ (5+3+2) total = 3/10.
Question 2: What is 2/3 ÷ 4/9?
- 3/2 (Correct answer)
- 8/27
- 6/7
- 1/6
Correct answer: 3/2
Dividing fractions: 2/3 × 9/4 = 18/12 = 3/2.
Question 3: If a salary of $54,000 per year is split into 12 equal monthly payments, how much is each payment?
- $4,000
- $4,200
- $4,500 (Correct answer)
- $4,800
Correct answer: $4,500
$54,000 ÷ 12 = $4,500 per month.
Question 4: What is the volume of a cube with a side length of 5 inches?
- 25 in³
- 75 in³
- 100 in³
- 125 in³ (Correct answer)
Correct answer: 125 in³
Volume of a cube = side³ = 5³ = 125 cubic inches.
Question 5: If x + 9 = 25, what is the value of 3x?
- 42
- 45
- 48 (Correct answer)
- 54
Correct answer: 48
x = 25 − 9 = 16; 3x = 3 × 16 = 48.
Question 6: Which of the following is NOT a factor of 36?
- 6
- 9
- 8 (Correct answer)
- 12
Correct answer: 8
36 ÷ 8 = 4.5, which is not a whole number, so 8 is not a factor of 36.
Question 7: A recipe requires 2.5 cups of flour for 20 cookies. How many cups are needed for 48 cookies?
- 5 cups
- 5.5 cups
- 6 cups (Correct answer)
- 6.5 cups
Correct answer: 6 cups
Cups per cookie = 2.5/20 = 0.125; for 48 cookies: 0.125 × 48 = 6 cups.
General Quantitative Aptitude Basics 4
A bag contains 5 red, 3 blue, and 2 green marbles.
What is the probability of picking a blue marble?