Quantitative Aptitude - Arithmetic Ability Questions

A balloon is connected to a meteorological station by a cable of length 130 m, inclined at 60 deg to the horizontal. Find the height of the balloon from the ground. Assume that there is no slack in cable.

A polygon has 9 sides. What is its interior angle?

If the edge of a cube is increased by 2 cm, the volume will increase by 488 cub.cm. What then will be the length of each edge of the cube?

The area and the length of one of the diagonals of a rhombus is 54 cm2 and 9 cm respectively. Find the length of its other diagonal (in cm).

D and E are points on side AB and AC of ΔABC. DE is parallel to BC. If AD:DB = 1:2 and area of ΔABC is 45 sq cm, what is the area (in sq cm) of quadrilateral BDEC?

Find the curved surface area (in cm2) of a right circular cylinder of diameter 7 cm and height 6 cm.

The point of the intersection of three medians is known as the ____________.

If the 1st and the 3rd term of an arithmetic progression are -10 and -4, what is the 12th term?