Quantitative Aptitude - Arithmetic Ability Questions

What is the altitude of an equilateral triangle whose side is 12√3 cm?

Find the approximate simple interest on Rs. 2000 from March 9, 2010 to May 21, 2010 at 8.25% per annum.

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

In a triangle ABC, a line is drawn from C which bisects AB at point D. Find the ratio of area of the triangles DBC and ABC.

A sum becomes 1.69 times of itself in 2 years when invested at compound interest. What is the per annum rate of interest (in percentage)?

ΔPQR is right angled at Q. If cosecP = 25/24, then what is the value of cotR ?

The surface area of a sphere is 2464 cm². Find its diameter (in cm).