List of top Quantitative Aptitude Questions

The mean of \(50\) observations was \(36\). It was found later that an observation \(48\) was wrongly taken as \(23\). The corrected new mean is?
A shopkeeper marked a watch 25% above its cost price, sold it with a 15% discount, and received \$850. Find the cost price.
The total number of female employees in companies B and F together is what percent of the total number of employees in company D?
The sum of two numbers is 1056 and their HCF is 66. Find the number of such pairs.
At present, Mani is 4 times the age of Vaibhav. After 3 years, Mani will be 2 times as old as Vaibhav. What is the present age of Mani?
The number of male employees in company D is what percent less than the number of female employees in company C?
A cylindrical jar whose base has a radius of 15 cm is filled with water up to a height of 20 cm. A solid iron spherical ball of radius 10 cm is dropped in the jar to submerge completely in water. Find the increase in the level of water.
In a moderately asymmetrical distribution, the mode and mean are 32.1 and 35.4 respectively. Calculate the median.
What is the difference between the average of books sold by stores A and E together and average of books sold by stores C and D together?
Find the central angle for store D.
The area of a rectangular field is 15 times the sum of its length and breadth. If the length of that field is 40 m, what is the breadth of that field?
There are 3 consecutive odd numbers and 3 consecutive even numbers. The smallest even number is 9 more than the largest odd number. If the square of the average of odd numbers is 507 less than the square of the average of even numbers, what is the smallest odd number?
The ratio between the speeds of two trains is 8:9 and the second train covers 360 km in 4 hours. The distance covered by the first train in 3 hours is:
Harsh makes a fixed deposit of \rupee 20,000 in Bank of India for a period of 3 years. If the rate of interest be 13% SI per annum charged half-yearly, what amount will he get after 42 months?
If \( 0.764y = 1.236x \), then what is the value of \( \left( \frac{y - x}{y + x} \right) \)?
The sum of first 15 multiples of 8 is:

In the three intersecting circles given below, the numbers in different sections indicate the number of persons speaking different languages. How many persons speak only two languages?

A, B and C are three contestants in a 500 m race. If A can give B a start of 20 m and A can give C a start of 32 m, then how many metres start can B give to C?
Find the median of the following observations: 6, 49, 14, 46, 16, 42, 26, 32, 28
In how many ways can the letters of the word ‘STRESS’ be arranged?
If the work done by 8 men and 4 boys in 1 day is 7 times the work done by 1 man and 1 boy, then compare the work done by 1 man and 1 boy in 1 day.
If $\sqrt{18 \times 14 \times x} = 168$ then $x$ is equal to:
Wheat is now being sold at \rupee 27 per kg. During the last month, its cost was \rupee 24 per kg. Find by how much percent a family reduces its consumption so as to keep the expenditure fixed.
12 men and 16 boys can finish a work in 5 days, while 13 men and 24 boys can finish the same work in 4 days. What is the ratio of daily work done by a man to that of a boy?
The mean, median, mode and range of the observations \(7, 6, 7, 9, 14, 9, 7, 15\) is: