Quantitative Aptitude PYQs

The LCM of x and y is 441 and their HCF is 7. If x = 49 then find y.

The mean proportional between 0.04 and 0.36 is:

Given that A and B are second quadrant angles, sin A = \(\frac{1}{3}\) and sin B = \(\frac{1}{5}\), then find the value of cos (A − B).

A and B can complete a work in 10 days and 15 days, respectively. They got a total of Rs. 1,250 for that work. What will be B’s share?

There are six baskets — Green, Red, Blue, Yellow, Black and White.

Each basket has some rings in it. The average number of rings in all the six baskets is 38. If the blue basket is removed, the average number of rings in the remaining baskets is 34. How many rings are there in the blue basket?

A boat can go 40 km downstream and 25 km upstream in 7 hours 30 minutes. It can go 48 km downstream and 36 km upstream in 10 hours. What is the speed (in km/h) of the boat in still water?

Amit & Sumit start walking from same point in opposite directions at the speed of 6 km/h and 4 km/h, respectively. How far will they be from each other after 4 hours?

In a shop, a discount of 8% is provided. If the total payable after discount is more than Rs. 5,000 and additional discount of 20% is provided, then determine the final amount to be paid by customer, if he buys 12 products each of price Rs. 750.

The HCF of two numbers 960 and 1020 is:

If the 9-digit number 72x8431y4 is divisible by 36, what is the value of \(\rm\left(\frac{x}{y}−\frac{y}{x}\right) \) for the smallest possible value of y, given that x and y are natural numbers?

The total surface area of a solid metallic hemisphere is 462 cm². This is melted and moulded into a right circular cone. If the radius of the base of the cone is the same as that of the hemisphere, then its height is: (use π = 22/7)

The greatest four digit number which is exactly divisible by 15, 24 and 40 is:

Study the following table and answer the question.

The table shows the percentage of marks obtained by five students in different subjects.

What are the percentage marks obtained by Mohan?

If 16y² − k = \(\rm\left(4 y+\frac{3}{2}\right)\left(4 y−\frac{3}{2}\right)\), then the value of k is:

A wristwatch is sold for Rs. 1,200 at a profit percent equal to its cost price. Find the cost price of the wristwatch.

The given pie chart shows the percentage of students who speak different languages in a hostel. The total number of students in the hostel is 100.

What is the ratio of students speak English and Bhojpuri to those who speak Tamil?

The value of \(\rm\frac{\left{\left(m^2+n^2\right)(m-n)-(m-n)^3\right}}{\left(m^2 n-m n^2\right)}\) is:

The population of a town is 1,25,000. If the annual birth rate is 12.7% and the annual death rate is 2.7%, how much will the population increase after 3 years?

A computer marked at Rs.18,000 was sold at Rs.15,840. The percentage of discount is:

A can do a piece of work in 10 days. B can do it in 15 days. With the assistance of C they completed the work in 5 days. Find in how many days C alone can do it?