Quantitative Aptitude - Arithmetic Ability Questions

If x-1x = 10, then find the value of x4+1x2

A scored 72% in a paper with a maximum marks of 900 and 80% in another paper with a maximum marks of 700. If the result is based on the combined percentage of two papers, the combined percentage is

If the shopkeeper sells an item at Rs 1000 which is marked as Rs 1250, then what is the discount he is offering?

If tanA + tanB = X, then the value of X is

If cotθ = 4, then the value of 5sinθ+3cosθ5sinθ-3cosθ is

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

The volume of a right circular cone, whose radius of the base is same as one-third of its altitude, and the volume of a sphere are equal. The ratio of the radius of the cone to the radius of the sphere is :

What is that least digit that must be added to the product 5786 × 5784 to make it a perfect square?