List of top Quantitative Aptitude Questions

The sum of a two-digit number and the number obtained by reversing its digits is 99. If the digits differ by 3, what is the number?
A boat covers 24 km upstream and 36 km downstream in 6 hours, while it covers 36 km upstream and 24 km downstream in 6.5 hours. What is the speed of the boat in still water?
A man sells an article at a loss of 10%. If he had sold it for Rs. 50 more, he would have gained 5%. What is the cost price?
The sum of the squares of three consecutive integers is 110. What is the smallest integer?
The sum of three numbers is 98. If the ratio of the first to the second is 2:3 and the second to the third is 5:8, what is the second number?
If $\sin \theta + \cos \theta = \sqrt{2}$, what is $\sin \theta \cos \theta$?
If $3x = 4y = 12z$, what is the ratio $x:y:z$?
The HCF of two numbers is 12, and their LCM is 144. If one number is 36, what is the other number?
If $a^2 + b^2 = 25$ and $ab = 12$, what is $(a + b)^2$?
A sum of Rs. 2000 is invested at 10% per annum compound interest. What is the amount after 2 years?
What is the value of $2^{10}$?
A car travels 240 km in 4 hours. What is its speed in km/h?
The cost price of an article is Rs. 400. If it is sold at a profit of 25%, what is the selling price?
If $f(x) = x^2 + 2x + 1$, what is $f(3)$?
The ratio of the ages of A and B is 3:4. Five years hence, the ratio will be 4:5. What is the present age of A?
A sum of money doubles in 5 years at simple interest. In how many years will it become 4 times?
If the roots of the equation $x^2 - 6x + k = 0$ are real and their product is 8, what is the value of $k$?
What is the value of $\log_2 8 + \log_3 9$?
If $2x + 3y = 15$ and $x - y = 1$, what is the value of $x + y$?
A train travels 360 km at a uniform speed. If the speed had been 5 km/h more, it would have taken 1 hour less. What is the speed of the train?
The sum of the first $n$ terms of an arithmetic progression is $3n^2 + 2n$. What is the 10th term?
A shopkeeper sells two types of items, A and B, at a profit of 20% and 30%, respectively. If the cost price of A is Rs. 100 and B is Rs. 200, and he sells 3 items of A and 2 items of B, what is the total profit?
If $x + y = 10$ and $xy = 21$, what is the value of $x^2 + y^2$?
A and B can do a job in 6 days. A alone takes 10 days. How long does B take?
If $\log_2 x + \log_4 x = 3$, find $x$.