List of top Quantitative Aptitude Questions

In what ratio must water be mixed with milk to gain 20% by selling the mixture at cost price?

When 25 is subtracted from 50% of a number, the result is 25. Find the number.
If twice the numerator of a fraction is decreased by 50% and thrice the denominator is increased by 200%, the resultant fraction is \( \frac{121}{150} \). What was the original fraction ?
What will come in place of the question mark (?) in the following question ? \[ \frac{120 - 22 \times 6 \div 2}{\frac{1}{4} \text{ of } 256 \div 16 + 2} = ? \]
What will come in place of the question mark (?) in the equation \( 38^2 + 63^2 + (?)^2 = 6089 \) ?

Numbers in the table represent the number of athletes participated from various countries during the years 2014 to 2019. Answer the questions using these details.

participated from various countries during the years 2014 to 2019. Answer the questions 56-

The Directions:
The following Pie chart shows Number or Percentage of women employees in a company from A to F. Study it carefully and answer the questions.

The following Pie chart shows Number or Percentage of women employees in a company from A to F.

\(\frac{\sqrt{7} + \sqrt{5}}{\sqrt{7} - \sqrt{5}} + \frac{\sqrt{7} - \sqrt{5}}{\sqrt{7} + \sqrt{5}} \) \(=\)

If \(A = \begin{bmatrix} 1 & 8  0 & 1 \end{bmatrix}\), then \(A^8 =\)

Which term in the expansion of \(( x - \frac{1}{x^3})^{40}\) is independent of \(x\)?

A coin is tossed 6 times. What is the probability of getting head at least once?
When two dice are thrown, what is the probability of getting the sum 7?
The mean deviation of 3, 4, 5, 6, 7 is
The median of 260, 240, 210, 190, 180, 220, 230, 250 is
The arithmetic mean of some numbers is 18 and their median is 16. Then what is the mode?
The Standard Deviation of 2, 4, 6, 8, 10 is
What is the Harmonic Mean of 3, 4, 5, and 6?
P and Q are two sets such that \( n(P) = 3 \) and \( n(Q) = 4 \). A relation from \( P \) into \( Q \) is selected at random. What is the probability that the relation is not a function?
What is the Geometric Mean of 12, 30, and 75?
What is the area, in square units, of the triangle formed by the points \( (3, 2), (3, -6) \) and \( (5, 2) \)?
\[ \lim_{x \to \infty} 5 \left( 1 + \frac{4}{x} \right)^x = \]
The arithmetic mean of 7.6, 6.8, 5.4, 6.4, 7.2, (4)8, 6.6, and 5.8 is
The equation of the straight line passing through the points \( (1, -5) \) and \( (-2, 4) \) is
If each exterior angle of a regular polygon is \( 36^\circ \), then the number of sides of the polygon is
If \( y = x(x - 1)(x - 2) \), then the derivative \( \frac{dy}{dx} \) is