Quantitative Aptitude - Arithmetic Ability Questions

Findout the odd word/letters/number/number pair from the given alternatives.

If cos 60° - sec 30° = x, then the value of x is

What is the simplified value of (cosec A + sin A)(cosec A – sin A)?

The median of the data -3, 4, 0, 4, -2, -5, 1, 7, 10, 5 is

ΔPQR is right angled at Q. If secP = 13/5, then what is the value of sinR ?

The number of sides of a regular polygon whose exterior angles are each 40 deg is

In ΔDEF measure of angle E is 90 deg. If cotD = 8/15, and DE = 16cm, then what is the length (in cm) of side EF?

Select the odd word/letters/number/number pair from the given alternatives.