Quantitative Aptitude - Arithmetic Ability Questions

If x = (√5) + 1 and y = (√5) – 1, then what is the value of (x2/y2) + (y2/x2) + 4[(x/y) + (y/x)] + 6?

The curved surface area and the slant height of a right circular cone are 99 sq.cm and 9 cm respectively. Find its diameter (in cm)

What is the measure of an interior angle of a regular polygon of 10 sides?

A line passing through the origin perpendicularly cuts the line 3x - 2y = 6 at point M. Find M?

A photographer allows a discount of 10% on the advertised price of a camera. The price (in Rs) that must be marked on the camera, which cost him Rs 600, to make a profit of 20% would be

What is the value of 64% of 75% of 8100?

If x - y = -9 and xy = -20, then find x2 + y2 ?

Pankaj has done 1/2 of a job in 12 days, Sainath completes the rest of the job in 6 days. In how many days can they together do the job?