Quantitative Aptitude - Arithmetic Ability Questions

When n is divided by 4, the remainder is 3. The remainder when 2n is divided by 4 is:

If tan (5x ­- 10°) = cot (5y + 20°), then the value of x + y is

A piece of work can be done by 16 men in 8 days working 12 hours a day. How many men are needed to complete another work, which is three times the first one, in 24 days working 8 hours a day?

A bank offers 10% compound interest per half year. A customer deposits Rs. 2000 each on 1st January and 1st July of a year. At the end of the year, the amount he would have gained by way of interest is

Find the value of 6732.8 + 673.28 + 67.328 + 6.7328 + 0.67328 ?

What is the value of a2 + b2a3 - b3, when a + b = 8 and a - b = 2?

The external and the internal radii of a hollow right circular cylinder of height 15 cm are 6.75 cm and 5.25 cm respectively. If it is melted to form a solid cylinder of height half of the orignal cylinder, then the radius of the solid cylinder is

Find the total surface area (in cm2) of a cuboid of length, breadth and height of 10.5 cm, 8 cm and 9 cm respectively.