List of top Quantitative Aptitude Questions

\(\frac{2}{3}\)of a certain number is 12. How much will be half of the number?
A boat can travel with a speed of 9 km/hr in still water. If the speed of the stream is 3 km/hr, then what time does it take to travel 30 km downstream?
A boat running downstream covers 24 km in 4 hours, while it takes 6 hours for covering the same distance upstream. What is the speed of the boat in still water?
A company offers three types of successive discounts: Option A) \(20\% \space and \space 10\%\). Option B) \(15\% \space and \space 15\%\) Option C) \(25\% \space and \space 5\%\)
Which option is most advantageous to a customer?
A trader sells one kg of wheat at a profit of \(10\%\). If he had bought it at \(20\%\) less and sold it for Rs. 10 less, what would have been his profit percentage? What was the cost price of wheat per kg
Mr. Ramesh availed a loan at simple interest at 6% in the first year, with an increase of 0.5% in every subsequent year. How much loan did he take?
Two trains approach each other at 30 km/hr and 27 km/hr from two places 342 km apart. After how many hours will they meet?
A man sold two boxes of apples for Rs. 400 each. On one he gained a 20% profit, and on the other he incurred a 20% loss. What was his net gain or loss in the whole transaction?
The mean diameter of 15 truck tyres is 154 cm. It is discovered later that while calculating the mean, the reading of one of the tyres was wrongly taken as 148 cm instead of 158 cm. The correct mean diameter will be:
\((17+16\% \space of \space 200)\)\(- (3\% \space of \space 300) =x.\) Find the value of \(x ?\)
When the hands of a clock show 5' O clock, the angle between them is
X and Y are 15 km apart. X can walk at a speed of 4 km/h and Y at the speed of 6 km/h. If they start walking towards each other at the same time, at what time will they meet?
The average age of four girls is 12 years. The ages of three of them are 8, 12, and 13. What is the age of the fourth girl?
A discount series of \(10\%\), \(20\%\) and \(40\%\) is equal to a single discount of:
If Rs. 4,800 will maintain a family of 5 persons for 72 days, for how long will Rs. 6,400 maintain a family of 8 persons?
Four prime numbers are written in ascending order. The product of the first three numbers is 385, and that of the fourth number is what?
If a, b, c, d, e are five consecutive odd integers, what is their average?
If three numbers are in the ratio 3:2:5 such that the sum of their squares is 1,862, the middle number will be:
A man drives to his office at 60 km/hr and returns home along the same route at 30 km/hr. Find the average speed for the entire journey.
In a class of 100 students, 55 students have passed in Mathematics and 67 students have passed in Physics. The number of students who passed in Physics only is:
The least perfect square, which is divisible by each of 21, 36 and 66 is:
A train travels the first 160 km at 64 km/hr and the next 160 km at 80 km/hr. What is the average speed of the train?
84,232 + 414 - 8,439 = ?
An amount of Rs. 3000 increased to Rs. 3600 in 5 years at simple interest. If the interest rate was increased by 2%, what will be the amount at maturity?
If the outer radius of a metal pipe is 2.84 inches and the inner radius is 1.94 inches, what is the thickness of the pipe?