Quantitative Aptitude - Arithmetic Ability Questions

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

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

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

If 2560.256 = 25.6x, then what will be the value of x?

In the following question, select the odd letter/letters from the given alternatives.

97 x 97 = ?

If the amount received at the end of 2nd and 3rd year at Compound Interest on a certain Principal is Rs 16854, and Rs 17865.24 respectively, what is the rate of interest?

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