Quantitative Aptitude - Arithmetic Ability Questions

Find the number which is NOT a prime number.

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

The diagonals of 2 squares M and N are in the ratio 2:1. The ratio of their areas 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?

What is the diameter (in cm) of a sphere of surface area 6.16 sq cm?

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

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 = ?