Quantitative Aptitude - Arithmetic Ability Questions

If the amount received at the end of 2nd and 3rd year at Compound Interest on a certain Principal is Rs 28090, and Rs 29775.4 respectively, what is the rate of interest?

What are the co­ordinates of the mid point of the segment joining points C(5,­-2) and D(­-1,8).

The sum of two digits of a number is 10. If the digits are interchanged, then its value increases by 18. Find the number.

If O is the centre of a circle of radius 5 cm. At a distance of 13 cm from O, a point P is taken. From this point, two tangents PQ and PR are drawn to the circle. Then , the area of quadrilateral PQOR is

In triangle ABC, BAC = 90 deg and AD is perpendicular to BC. If AD = 6cm and BD = 4cm, then the length of BC is

A rectangle with one side 4 cm is inscribed in a circle of radius 2.5 cm. The area of the rectangle in sq.cm is:

13 years ago Ram was twice as old as Sunny. Three years from now Sunny's age will be 3/5 of Ram's age. What is Ram's current age?

Simple interest on a certain sum of money for 3 years at 16% per annum is half the compound interest on Rs. 12000 for 2 years at 10% per annum. The sum placed on simple interest is