Quantitative Aptitude - Arithmetic Ability Questions

If the diameter of a hemisphere is 21 cm, then what is the volume (in cub.cm) of hemisphere?

If x2 + ax + b, when divided by x + 3, leaves a remainder of -1 and x2 + bx + a, when divided by x - 3, leaves a remainder of 39, then a+ b = ?

Select the odd word/letters/number/number pair from the given alternatives.

In the following question, four number pairs are given. The number on left side of (–) is related to the number on the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

What is the value of 2sec2A?

The point P (a,b) is first reflected in origin to P1 and P1 is reflected in Y­axis to (4,­3). The co­-ordinates of point P are

The value of -3+3+87+43 is

A sum of money (P) doubles in 10 years. How much would it be in 20 years at the same rate of simple interest?