Quantitative Aptitude - Arithmetic Ability Questions

If x+1x=5,then the value of x1+x+x2 is

What is the value of (91 + 92 + 93 + ......... +140)?

If the sum of the measures of all the interior angles of polygon is 2340°. What is the number of sides of the polygon?

In the following question, four number pairs are given. The number on left side of (–) is related to the number on the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given options.

What is the value of [(cos 7A + cos 5A)÷(sin 7A – sin 5A)]?

The point Q(a,b) is first reflected in y­-axis to Q1 and Q1 is reflected in x­axis to (­-5,3). The co­ordinates of point Q are

If sin(A/2) = x, then the value of x is

A shopkeeper by selling 13 Titan watches, earns a profit equal to the selling price of 3 Titan watches. His profit percentage is