List of top Quantitative Aptitude Questions

The average (arithmetic mean) number of students in 3 economics classes at a certain college is 24. If the total number of students in 2 of the classes combined is 38, how many students are in the remaining class?
The lengths of the line segments are a, b, and ab, respectively. The line segments are drawn to scale.
Column A: a
Column B: 1
The circular clock above shows a time of exactly 3:30. What is the value of x?
Which of the lines in the figure above contains only points (x,y) with x = y?
What percent of the integers between 200 and 999, inclusive, end with the digits "03"?
Column A: (109)(87-14)
Column B: (109)(87)-(109)(14)
\(3 - 2x^2 - [-x(1+2x)] = -5\)
Column A: x
Column B: -8
a and b are positive integers.
Column A: \(\frac{a}{b}\)
Column B: \(\frac{a+3}{b+3}\)
A solid cubical block of wood has dimensions as shown in the figure (3ft side), and the block is to be cut in half as indicated by the shaded region.
Column A: The total surface area of one of the resulting halves of the block
Column B: 36 square feet
Carol's age, in years, can be expressed by reversing the digits in her father's age, in years. The sum of the digits in each age is 10.
Column A: The positive difference between Carol's age, in years, and her father's age, in years
Column B: 36
Column A: \((1+\sqrt{2})^2\)
Column B: 3
The probability that events E and F will both occur is 0.42. The probability that event E will occur is 0.58.
Column A: The probability that event F will occur
Column B: 0.58
PS = SR
Column A: \(x\)
Column B: \(y\)
The points P(2,0), Q(0,2), R(4,2) and S(2,4) are in the rectangular coordinate system. :
Column A: The distance from P to Q
Column B: The distance from R to S
Column A: a
Column B: b
Column A: \(\frac{24}{23} + \frac{101}{100}\)
Column B: 2
\(x=y=z\)
Column A: \(x^3\)
Column B: \(xyz\)
If \(x = a^3\) and \(y = a^7\), where \(a \neq 0\), which of the following is equivalent to \(a^{13}\)?
Workers at Companies X and Y are paid the same base hourly rate. Workers at company X are paid 1.5 times the base hourly rate for each hour worked per week in excess of the first 37, while workers at Company Y are paid 1.5 times the base hourly rate for each hour worked per week in excess of the first 40. In a given week, how many hours must a Company X worker work in order to receive the same pay as a company Y worker who works 46 hours?
The probabilities that each of two independent experiments will have a successful outcome are \(\frac{8}{15}\) and \(\frac{2}{3}\), respectively. What is the probability that both experiments will have successful outcomes?
If the radius of a circular region were decreased by 20 percent, the area of the circular region would decrease by what percent?
If x is 1, 2, or 3 and y is either 2 or 4, then the product xy can have how many different possible values?
Which of the following sets of numbers has the greatest standard deviation?
When 9 students took a zoology quiz with a possible score of 0 to 10, inclusive, their average (arithmetic mean) score was 7.5. If a tenth student takes the same quiz, what will be the least possible average score on the quiz for all 10 students?
If x, y, and z represent consecutive integers, and x \textless y \textless z, which of the following equals y?
I. \(x+1\)
II. \(\frac{x+z}{2}\)
III. \(\frac{x+y+z}{3}\)