Quantitative Aptitude - Arithmetic Ability Questions

Two tangents PA and PB are drawn to a circle of centre O in such a way that angle AOB = 120 deg. Calculate the value of angle APB.

How many spherical balls of radius 1 cm can be made by melting a hemisphere of radius 6 cm?

The two equal sides of an isosceles triangle is 20 cm each and the third side is 30 cm. What is the area (in sq.cm) of the triangle?

Calculate the length of the tangent (in cm) which is drawn from a point at a distance of 13 cm from the centre and the largest chord of that circle is 10 cm.

If the sum of radius and height of a solid cylinder is 20 cm and its total surface area is 880 cm then its volume is

The volume of a hemisphere is 5749.33 cm³. Find its diameter (in cm).

In ΔDEF, G and H are points on side DE and DF respectively. GH is parallel to EF. If G divides DE in the ratio 3:2 and HF is 8 cm, then the length of DF is

From the top of a platform 7 m high, the angle of elevation of a tower was 30 deg. If the platform was positioned 50√3 m away from the tower, how tall was the tower?