Quantitative Aptitude - Arithmetic Ability Questions

What is the measure of an exterior angle of a regular polygon of 10 sides?

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

The two sides holding the right-angle in a right-angled triangle are 3 cm and 4 cm long. The area of its circumcircle will be in sq.cm:

The volume of metallic cylindrical pipe of uniform thickness is 748 c.c. Its length is 14 cm and its external radius is 9 cm. The thickness of the pipe is

What will be the value of xy, if x2+y2 = 45 and x-y=5 ?

The sum of a non-zero number and twenty times its reciprocal is 9. What is the number?

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

Coefficient of x in (x + 9)(8 - 5x) is