Quantitative Aptitude - Arithmetic Ability Questions

The mean of a distribution is 20 and the standard deviation is 4. What is the value of the coefficient variation?

At what point does the line 3x + 2y = -12 intercept the Y-axis?

If tanθ = 815, then 1-sinθ1+sinθ is

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

The difference between compound interest and simple interest on a certain sum of money for 2 years at 5% per annum is Rs. 41. What is the sum of money?

Find the length of one side of a rhombus whose area is 24 sq.cm and the sum of the lengths of its diagonals is 14 cm.

What are the co-ordinates of the centroid of a triangle, whose vertices are A(-2,5), B(3,-2) and C(5,3)?

Find the sum of interior angles of a dodecagon?