Quantitative Aptitude - Arithmetic Ability Questions

The mean of the data 1, 2, 10, 18, 3, 17, 19 is

If tan(A/2) = x, then the value of x is

If  x = 2+3,then what is the value of 2x + 12x ?

In triangle ABC, AD, BE and CF are the medians intersecting at point G and area of triangle ABC is 156 sq.cm. What is the area (in sq.cm) of triangle FGE?

Consider two-digit numbers which remain the same when the digits interchange their positions. What is the average of such two-digit numbers?

The line passing through (­3,4) and (0,3) is perpendicular to the line passing through (5,7) and (4,x). What is the value of x?

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

In an army selection process, the ratio of selected to unselected was 5:1. If 100 less had applied and 20 less selected, the ratio of selected to unselected would have been 6:1. How many candidates had applied for the process?