Quantitative Aptitude - Arithmetic Ability Questions

If 2x2+2y2=4a the find the value of 2ax2-a+2ay2-a

The distance between the points (7,7) and (k,-5) is 13. Find k?

What is the value of 232 ?

The equation of a line is given by 4y-6x+9=0. Find the slope of other line which is perpendicular to it.

Two equal circles intersect so that their centres, and the points at which they intersect form a square of side 1 cm. The area (in sq.cm) of the portion that is common to the circles is

If x = 2 +√3, y = 2 – √3 and z = 1, then what is the value of (x/yz) + (y/xz) + (z/xy) + 2 [(1/x) + (1/y) + (1/z)]?

If sin π/6 + sec π/6 = x, then x is

If the price of sugar is decreased by 18%, then a person can buy 16.2 kg sugar more for Rs 4500. What will be the new price (in Rs) of sugar per kg?