Quantitative Aptitude - Arithmetic Ability Questions

Due to increase of k% in the side, the area of a square increases by 69%. What is the value of k?

An equilateral triangle ABC is inscribed in a circle of radius 20√3.
The centroid of the triangle ABC is at a distance d from the vertex A. What is d equal to ?

If 2x + 5 > 2 + 3x and 2x -­ 3 ≤ 4x -­ 5, then x can take which of the following values?

AB is the diameter of a circle with center O and P be a point on its circumference. If ∡POA = 120°, then the value of ∡PBO is

If A and B are the roots of the equation Ax2 – A2x + AB = 0, then what is the value of A and B respectively?

If 3x -­ 7 = 5x ­- 1, then the numerical value of (x ­- 4)2 is 

What is the equation of a line which has 3 as x-intercept and -5 as y-intercept?

A mother is five times older than her daughter. After 5 years, she would be 3 times older than her daughter. Find the mother's present age.