Quantitative Aptitude - Arithmetic Ability Questions

Find two numbers such that their mean proportion is 16 and third proportion is 1024.

The length of a rectangle is increased by 25%. To maintain the same area, the breadth has to be decreased by

If the parallel sides of a trapezium are 8 cm and 4 cm, M and N are the mid points of the diagonals of the trapezium, then length of MN is

A solid sphere of radius 3 cm is melted to form a hollow right circular cylindrical tube of length 4 cm and external radius 5 cm. The thickness of the tube is

ΔXYZ is similar to ΔPQR. If ratio of perimeters of ΔXYZ : ΔPQR is 3:2 and if PQ = 6 cm then what is the length of XY (in cm)?

­ If the selling price of an item is Rs 1150 after getting a discount of 8%, what is its marked price?

A sum of Rs. 3000 amounts to Rs. 6000 in two years at compound interest. The interest for four years is

If the angle of elevation of the top of a pillar from the ground level is raised from 30° to 60°, the length of the shadow of a pillar of height 503 will be decreased by