Quantitative Aptitude - Arithmetic Ability Questions

The surface area of a sphere is 5544 sq.cm. Find its diameter (in cm).

Dodecahedron has 30 edges. How many vertices does it have?

What is the measure of an interior angle of a regular dodecagon?

The amount of Rs. 10,000 after 2 years, compounded annually with the rate of interest being 10% per annum during the first year and 12% per annum during the second year, would be (in rupees)

Two circles touch each other internally. The radius of the larger circle is 6 cm and the distance between the centre is 2 cm, then the radius (in cms) of the other circle is

The side of an equilateral triangle is 8 cm. Find its area (in cm2).

The diagonal of a square is 10√2 cm, find its perimeter?

D and E are points on side AB and AC of ΔABC. DE is parallel to BC. If AD:DB = 2:5 and area of ΔADE is 8 sq cm, what is the ratio of area of ΔADE: area of quadrilateral BDEC?