List of top Quantitative Aptitude Questions

Find the sum of the digits of $ 100^{100} - 10 $.

All natural numbers that give remainders 1 and 2 when divided by 6 and 5, respectively, are written in ascending order, side by side, from left to right. What is the 99th digit from the left of the number thus formed?

In a bag there are 100 coins. The coins in the bag are of denomination Rs.1 or Rs.2 or Rs.5. There are at least 10 coins and at most 60 coins of each denomination. Urvashi takes out 40 coins, which consist at least one coin of each denomination from the bag and finds that total worth of coins that she has taken out is Rs.148. The total worth of coins that are still in the bag is Rs.212. Which of the following can be the total number of coins of denomination Rs.1 that are still in the bag?

In an examination of 12600 students, the ratio of the number of boys to the number of girls is 3:4. The ratio of the number of students who passed the exam to those who failed the exam is in the ratio of 11:3. Among the girls, the ratio of the number of students who passed to those who failed the exam is in ratio 11:4. Find the difference between the number of boys who passed and failed the exam.

Solution P contains three liquids A, B, and C in the ratio 2:3:5 respectively. Another solution Q contains A, B, and C in the ratio 5:3:2 respectively. Solutions P and Q are mixed in the ratio 7:3 to obtain another solution R. Now 50% volume of R is replaced with another solution having A and B in the ratio 7:3. The resulting solution is Z. Find the percentage amount of B in solution Z.

Perimeter of $\Delta ABC$ is 32 m. If AB = BC and altitude BD measures 8 m, find area of triangle ABC.

Let R1 and R2 respectively denote the maximum and the minimum possible remainders when 276$^n$ is divided by 91 for any natural number n, n ≥ 144. Find R1 + R2.

In a group of 100 people, 70 like coffee, 60 like tea, and 45 like both coffee and tea. How many people like neither coffee nor tea?

A merchant made a profit of 5 on the sale of a sweater that cost the merchant $15. What is the profit expressed as a percent of the merchant's cost?
Give your answer to the nearest whole percent.

For the large cars sold at an auction that is summarized in the table above, what was the average sale price per car?

One pen costs 0.25 and one marker costs $0.35. At those prices, what is the total cost of 18 pens and 100 markers?

Quantity A: PS
Quantity B: SR

Annual Percent Change in Dollar Amount of Sales at Five Retail Stores from 2006 to 2008

A tank can be filled by Pipe A in 4 hours and by Pipe B in 6 hours. If both pipes are opened together, how long will it take to fill the tank?

The following data represent the scores of 7 students in a test: 12, 18, 22, 26, 30, 30, 32. What is the median of the scores?

A shopkeeper buys a product for $120 and marks it up by 25%. He then gives a 10% discount on the marked price. What is his final selling price?

The following data represent the scores of 7 students in a test: 12, 18, 22, 26, 30, 30, 32. What is the median of the scores?

If $x^2 - 5x + 6<0$, then which of the following is a possible value of x?

A tank can be filled by Pipe A in 4 hours and by Pipe B in 6 hours. If both pipes are opened together, how long will it take to fill the tank?

Working alone at its constant rate, machine A produces k liters of a chemical in 10 minutes. Working alone at its constant rate, machine B produces k liters of the chemical in 15 minutes. How many minutes does it take machines A and B, working simultaneously at their respective constant rates, to produce k liters of the chemical?

Which of the following could be the units digit of $57^n$, where n is a positive integer?
Indicate {all such digits.}

Rectangle R has length 30 and width 10, and square S has length 5. The perimeter of S is what fraction of the perimeter of R?

Which of the following integers are multiples of both 2 and 3?
Indicate {all such integers.}

Each employee of a certain company is in either Department X or Department Y, and there are more than twice as many employees in Department X as in Department Y. The average (arithmetic mean) salary is $25,000 for the employees in Department X and $35,000 for the employees in Department Y. Which of the following amounts could be the average salary for all of the employees of the company?
Indicate {all such amounts.}

Which two of the following numbers have a product that is between -1 and 0?
Indicate {both of the numbers.}