Quantitative Aptitude - Arithmetic Ability Questions

In the following question, select the odd word from the given alternatives.

What is the simplified value of cosec6A – cot6A – 3 cosec2A cot2A?

Solve the following equation to find x: (x − 2)2 − 36 = 0 : xεN

The four sides of a quadrilateral are in the ratio of 2:3:4:5 and its perimeter is 280m. The length of the longest side is

A line cuts two concentric circles. The lengths of chords formed by that line on the two circles are 4 cm and 16 cm. What is the difference (in cm2) in squares of radii of two circles?

What is the simplified value of [(sec3x – tan3x)/(sec x – tan x)] – 2 tan2x – sec x tan x?

If the profit is 20%, then what will be the ratio of cost price to selling price respectively?

If 13x2 = 172 - 92, find the value of x?