Quantitative Aptitude - Arithmetic Ability Questions

If cosA + cos2A = 1 then the value of sin2A + sin4A is

If ΔABC is an equilateral triangle of side 16 cm, then the length of altitude is

The base of a prism is in the shape of an equilateral triangle. If the perimeter of the base is 18 cm and the height of the prism is 20 cm, then what is the volume (in cm3) of the prism?

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

The mean of a distribution is 21 and the standard deviation is 7. What is the value of the coefficient variation?

Find out the odd word/letters/number/number pair from the given alternatives.

Select the odd letters from the given alternatives.

Reflection of the point (2,­7) in the y­axis is