Quantitative Aptitude - Arithmetic Ability Questions

If a + b + c = 11 and ab + bc + ca = 17, then what is the value of a3 + b3 + c3 – 3abc?

In a college union, there are 48 students. The ratio of the number of boys to the number of girls is 5:3. The number of girls to be added in the union, so that the number of boys to girls in 6:5 is

The difference between compound interest and simple interest on Rs. 5000 for 2 years at 8% per annum payable yearly is

A cuboid of size 50 cm × 40 cm × 30 cm is cut into 8 identical parts by 3 cuts. What is the total surface area (in cm2) of all the 8 parts?

What should be the average speed of a car to cover a distance of 189 km in 3.5 hours?

If two flood gates A and B function simultaneously, the reservoir will be filled iu 6 hours. Gate A fills the reservoir 5 hours faster than gate B. How many hours does the faster flood gate take to fill the reservoir?

A train 240 meters in length crosses a telegraph post in 16 seconds. The speed of the train is?

If x + (1/x) = 2, then what is the value of x64 + x121?