Quantitative Aptitude PYQs

Two pipes, D and E, can fill a cistern in 26 and 78 hours, respectively, while working alone. If the two pipes are opened together, the time taken to fill the cistern is:

The following table shows the number of computers sold from five different stores in a city on five days of a given week.

What is the ratio of the total number of computers sold from store S on Tuesday, Monday and Sunday taken together to that sold from store P on Tuesday, Wednesday and Thursday taken together?

A shopkeeper buys three products a, b, c and sells at 20%, 30%, 40% profit, respectively. What is ratio of the selling price of these products, if the ratio of their cost prices is 4 ∶ 3 ∶ 2?

The average of five terms is 40. if the first four terms are given as 50, 52, 35 and 46, find the fifth term.

Study the given pie-chart and answer the question that follows.

The pie-chart shows the percentage distribution of the number of different types of chocolates distributed by Akanksha to the residents of a children's home, as percentage of all the chocolates taken together, that were distributed by her to these residents.

The average number of chocolates of Diary Milk, 5-Star and Snickers taken together is equal to the number of chocolates distributed of which of the given types?

Rahul bought 120 tables for Rs. 56,500. If the average price of 70 of those tables is Rs. 450, then what is the average price of the remaining 50 tables?

Param can do a piece of work alone in 24 hours, and Charan can do the same work alone in 30 hours. If they work together, what fraction of the work can they complete in 1 hour?

The area of the base of a closed cylinder is 1386 cm². If the height of the cylinder is 20 cm, then what is the total surface area of the cylinder? [Use π = \(\frac{22}{7}\)]

In how much time can a person cover a distance of 300 metres at a speed of 27 km/h?

A sofa costs Rs. 24,000 before tax. What is the percentage of sales tax charged, if the sales tax on it is Rs. 1,200? 

The following bar chart shows the marks obtained (out of 100) by a student in 7 different subjects in an examination.

The total marks obtained by the student in S1 and S6 taken together is approximately what percentage of the marks obtained by the student in S4?

The cost price of a table to Ravi, was Rs. 1,600. Ravi sold this table at a loss of 10%. What was the price at which Ravi sold the table?

If the three sides of a triangle are 21 cm, 20 cm and 29 cm long, what is the area of the triangle?

If \(\rm \frac{P}{3}=\frac{Q}{5}=\frac{R}{2}\), then what is the value of (P + 2Q + 3R) ∶ (P + Q + R)?

If, on a certain sum, the simple interest for 2 years is Rs. 1,200, then what is the simple interest on the same sum for 5 years, if the rate of interest remains unchanged?

The following table shows the number of students from different schools, choosing their favourite game.

Which school has the maximum number of students choosing American Football as their favourite game?

Tap A can fill an empty tank alone in 6 hours. Tap B alone can empty the same tank, when filled, in 8 hours. If they are opened in alternate hours starting with A, then in how much time will the tank be full for the first time?

The salaries of two friends are in the ratio of 3 ∶ 4. If the difference in their salaries is Rs. 3,000, then find the sum of their salaries.

The length of a rectangle is 5 times of its breadth. If the breadth is 10 cm, then what is the area of this rectangle? 

If \(\rm P = \frac{6 \times 4\div2}{8\times3\div6}\) and \(\rm Q = \frac{12\div4-2}{4\div 3\times12}\), then what is the value of \(\rm \left(\frac{P}{Q}\right)^2\) ?