Quantitative Aptitude - Arithmetic Ability Questions

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

What is the value of √121 + √12321 + √1234321 + √123454321?

By increasing the price of entry ticket to a fair in the ratio 5:7, the number of visitors to the fair has decreased in the ratio 11:9. In what ratio has the total collection increased or decreased?

If x – 3 + [1/(x – 3)] = 4, what is the value of [(x – 3)3+ [1/(x – 3)3]?

If x + 1/x = 6, then value of x2 + 1/x2 is

What is the measure (in degree) of an exterior angle of a regular polygon of 9 sides?

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

Square of (7 ­- 4x) is