List of top Quantitative Aptitude Questions

Expand the expression \( (x + 3)(x - 2) \).
Solve for \( y \): \( 2y - 7 = 3y + 4 \).
The average (arithmetic mean) of 5, 10, 15, and 20 is:
Solve for \( z \) if \( 4z - 7 = 3z + 5 \).
If the probability of an event occurring is 0.25, what is the probability that the event does not occur?
Find the median of the dataset: 8, 12, 15, 22, 26, 29.
What is the standard deviation of the dataset: 3, 7, 7, 8, 10, 15?
Simplify the expression: \( (3x - 2)(2x + 5) \)
A company's sales increased from \(\$\)1,500,000 to \(\$\)2,000,000 in one year. What was the percentage increase?
If \( 3x + 2 = 11 \), what is the value of \( x \)?
What is the value of \( x \) in the equation \( 2(x + 3) = 5x - 4 \)?
If \( \frac{7}{4} x = 8 \), what is \( x \)?
What is the area of a circle with a diameter of 10 cm?
\textit{(Use} \( \pi \approx 3.14{)}
Find the surface area of a cube with side length 4 cm.
If \[ g(x) = 2x^2 - 5x + 3, \text{ find } g(2). \]
Solve for \( x \): \[ x^2 - 6x + 9 = 0 \]
What is the least common multiple (LCM) of 12 and 15?
If a car travels 300 miles in 5 hours, what is the average speed in miles per hour?
A dataset contains the numbers 12, 15, 18, 20, and 25. What is the range?
If \( x \) is inversely proportional to \( y \) and \( x = 8 \) when \( y = 2 \), what is \( x \) when \( y = 4 \)?
A dataset contains the numbers 4, 6, 8, 10, and 12. What is the mean?
In a survey, 70% of respondents preferred product A over product B. If 140 people preferred product A, how many people were surveyed in total?
A right triangle has legs of length 9 cm and 12 cm. What is the length of the hypotenuse?
Solve for \( x \) if \( 3x + 2 = 14 \).
Simplify the expression \( 4(x - 3) + 5 \).