List of top Quantitative Aptitude Questions

A circle of radius 20 cm with centre P lies completely inside another circle of radius 50 cm with centre Q, such that they touch at excatly one point. The centres of these circles are joined to form a line segment PQ. From P and Q, perpendiculars are drawn on the same side such that perpendicular from P intersects small circle at S and perpendicular from Q intersects large circle at R. What will be the area of quadrilateral PQRS?
A spherical ball of radius 42 cm has a cubical cavity of side length 6 cm inside it. Inside the cubical cavity, there is a spherical ball of radius 2.1 cm. Both these balls are made of a metal having a density of 0.1 grams per cubic cm. What amount of metal has been used approximately? (use pi =22/7)
The length of each side of a rhombus is 26 cm. If the length of one of its diagonals is 20 cm, then what will be the length of its other diagonal?
In a fraction, both the numerator and denominator are perfect squares. The sum of numerator and denominator is also a perfect square. If numerator is subtracted from denominator, we get 527. The last digit of numerator is 9. What is the value of product of numerator and denominator?
In a fraction, the numerator is 2 less than the denominator. If their squares are added together, we get 290. What is the sum of the numerator and the denominator?
One-third of a cake is eaten. Then, one-fourth of the remaining cake is eaten. Then, three-fifth of the remaining cake is eaten. What fraction of the total cake is left now?
A sum of money is divided into two parts in the ratio 3:2. Larger part is invested at compound interest at\(10\%\)per annum for 3 years. Smaller part is invested at compound interest at\(20\%\)per annum for 2 years. Total interest earned is Rs.9,365. What was the sum of money?
In a scheme, the interest is compounded half yearly. The rate of interest is\(20\%\)per annum. If Rs.4,00,000 is invested in this scheme, then how much interest will be earned in two years?
Rs.2,00,000 is invested for 4 years at yearly compounded interest such that the rate of interest is\(10\%\);per annum for first 2 years and\(30\%\)per annum for last 2 years. What will be the sum of money after 4 years?
The average of three natural numbers X, Y and Z is 27. The average of X and Y is 22. X is a multiple of both 4 and 5 and is less than 30. What is the value of average of XY and YZ?
What will be the average of the squares of first five prime numbers of two digits?
In a group of 5 persons, the average height is 150 cm. The average height increases to 155 cm when a new person is added to the group. What is the height of the new person?
If\(+ means \times\),\(- means +\)and\(\times means -\), then what will be the value of\(22 + 7 - 12 \times 60\)?
A water tank gets filled in 2 hours when it is filled at 2 litres per minute. If there is a leakage at the bottom of tank that drains water at 1 litre every 2 minutes, then how much time will it take to fill the tank?
A boy eats 12 burgers in an hour. How many burgers will 8 boys eat in 20 minutes?
Mohan and Sohan are running around a circular track. They decide to run a race such that one who finishes 6 rounds of the track first wins the race. They are running in opposite directions. The ratio of speeds of Mohan and Sohan is 1:2. How many times will they cross each other during the race (excluding the beginning and end of race)?
A train of length 300 metres runs at a speed of 72 km/hr. In how much time it will cross a platform of length 200 metres?
In an alloy of Zinc and Copper, the ratio of Zinc and Copper is 3:2. 70 kg of this alloy is taken. Through a chemical process, 30 kg of this mixture is taken out such that the removed mixture has Zinc and Copper in the ratio 2:1. What will be the ratio of Zinc and Copper in the remaining mixture?
What will be the third proportion to 368 and 552?
In an office with 60 staff, the ratio of male to female staff is 7:8. How many male employees to be recruited so that the ratio of male to female staff becomes 2:1?
The ratio of the angles in a quadrilateral is 4:7:5:2. What is the measure of the largest of these angles?
Ram sold a shirt to Neeraj at\(20\%\)profit. Neeraj further sold this shirt to Rahul at Rs.432 and thereby incurred\( 10\%\)loss. At what price did Ram bought the shirt?
A book is sold at a selling price of Rs.400. If the cost price is Rs.50 more than half the selling price, then what is the profit percentage?
In a class,\(40\%\)of students are boys. After 6 girls and 14 boys left the class,\(75\%\)students are girls. What will be the percentage of boys in the class, if 10 boys join?
The number of flowers in a garden is 1200. The number grew by\( 10\%\)in a week. Then, in next week, the number reduced by\(20\%\). Then, in next week, the number grew by\(50\%\). How many flowers would be there in total now?