Quantitative Aptitude - Arithmetic Ability Questions

What is the measure (in degree) of an exterior angle of a regular polygon of 9 sides?

The average of 3 consecutive even numbers is A. If next 5 even numbers are added, then what is the average of these 8 numbers?

What number should be added to each of the numbers 55, 100, 65 and 116, so that the resulting numbers are in continued proportion?

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

The total surface area of a hemisphere is 4158 cm2. Find its diameter (in cm).

In a committee there are 25 members. If two members whose ages are 64 years and 40 years are replaced by the two new members, then average age of 25 members is decreased by 2 years. What is the average age (in years) of the new members?

A sum of Rs. 3000 amounts to Rs. 6000 in two years at compound interest. The interest for four years is

If 169 is subtracted from the square of a number, then the result obtained is 7056. What is the number?