List of top Quantitative Aptitude Questions

10 litres of concentrated acid containing 75% of acid and rest water is mixed with X litres of diluted acid containing 40% of acid and rest water. If the final mixture contains 60% of acid then value of X is:
Mr. A took a loan of ₹ 300000 at 10% annual interest rate and paid ₹ 5000 as monthly instalment under flat rate system. What is the term of the loan?
Which of the following speeds is the least?
What is the smallest square number which is divisible by 4, 6 and 32?

From the figure, what is the value of x?

How many terms are there in the A. P. 3, 7, 11, ......... 407 ?
Find the angle of elevation of the Sun, when the length of the shadow of a tree is \( \frac{1}{\sqrt{3}} \) times the height of the tree.
A and B can do a work in 9 days and 12 days respectively. If they work on alternate days starting with A, then in how many days will the work be completed?
Find the angle of elevation of the Sun, when the length of the shadow of a tree is \( \sqrt{3} \) times the height of the tree.
A railway half-ticket costs half the full ticket. However the reservation charge for all the tickets is constant. One full reserved ticket for a journey is Rupees 525. If the cost of one full and one half reserved ticket for the same journey is Rupees 850, then what is the reservation charge per ticket?
The average of 12 numbers is 15 and the average of the first two numbers is 1(D) What is the average of the remaining numbers?
A bag contains 5 black, 3 white and 2 red balls. Three balls are drawn in succession. What is the probability that the first ball is red, the second ball is black and the third ball is white?
What is the probability that any non-leap year will have 53 Sundays?
The point \((-2, 3)\) lies in which quadrant?
Find the perimeter of a rhombus whose one diagonal is 16 cm long and area is 240 cm\(^2\).
If the median of \( \frac{x}{5}, x, \frac{x}{4}, \frac{x}{2} \) and \( \frac{x}{3} \) (where \(x > 0\)) is 8, then the value of \(x\) will be
The area of a circle is numerically equal to its circumference. Find the diameter of the circle.
If selling price of 80 articles is equal to the cost price of 100 articles, then find the gain percentage.
What sum of money will amount to Rs. 520 in 5 years and to Rs 568 in 7 years on simple interest?
X got 98 marks in his exam which is 56 of the total marks. What is the maximum marks of the exam?
Find a single equivalent increase if the number is successively increased by 20, 25 and 30?
The ratio of ages of 2 boys is 3:7. After 2 years, the ratio of their ages will become 5:9. The ratio of their ages after 10 years will be
Which one of the following options is considered as the relative measure of dispersion?
Two pipes, A and B, can fill a tank in 20 and 30 minutes respectively. If both the pipes are used together, how long will it take to fill the tank?
Kavya is 40 years old and Neetu is 60 years old. How many years ago was the ratio of their ages 3 : 5?