Quantitative Aptitude - Arithmetic Ability Questions

Find the number which is NOT a prime number.

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

From the top of a platform 5 m high, the angle of elevation of a tower was 30 deg. If the platform was positioned 40√3 m away from the tower, how tall was the tower?

If Cosecθ + Cotθ = 2, then Cotθ = ?

A cylindrical vessel of radius 7 cm is partially filled with water. By how much will the water level rise if a sphere of radius 6 cm is completely immersed in this water?

The total surface area of a cube is 73.5 sq.cm. Find its side (in 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