Quantitative Aptitude - Arithmetic Ability Questions

The point P (a,b) is first reflected in origin to P1 and P1 is reflected in Y­axis to (4,­3). The co­-ordinates of point P are

If cos 2π/3c = x, then the value of x is

When a number is increased by 26, it becomes 113% of itself. What is the number?

What is the mean of the first five Triangular Numbers?

The distance between two pillars is 120 metres. The height of one pillar is thrice the other. The angles of elevation of their tops from the midpoint of the line connecting their feet are complementary to each other. The height (in metres) of the taller pillar is (Use : √3 = 1.732)

Four numbers, when arranged in ascending order, are w, x, y and z. The average of the smallest three numbers is 18, while the average of the largest three was 22. What is the range of the data?

If 4x2 - 12x + k is a perfect square, then the value of k is

What is the reflection of the point (5, -2) in the line x = -1?