Quantitative Aptitude - Arithmetic Ability Questions

From the top of a platform 5 m high, the angle of elevation of a tower was 30 deg. If the platform was positioned 40√3 m away from the tower, how tall was the tower?

 What is the value of (sin60° - 2/√3) ?

If a rod of length 208 45 is cut into equal pieces of length 23 15 then the total number of rods obtained is

Sin6A + Cos6A - 1 is equal to

A sum of Rs. 2000 at 40% per annum compounded annually. Calculate the interest for the third your at compound interest.

In a right angled triangle ΔDEF, if the length of the hypotenuse EF is 12 cm, then the length of the median DX is

The angle of elevation of the top of a pillar from the foot and the top of a building 20 m high, are 60° and 30° respectively. The height of the pillar is

What is the slope of the line perpendicular to the line passing through the points (­-4,5) and (3,­-2)?