Quantitative Aptitude - Arithmetic Ability Questions

1.004 - 0.4 is equal to

What is the value of 12 + 3(-2 x 3) - (18 / 6) ?

The square root of 4624 is

The centroid of a triangle is the point where

At what point does the line 3x + y = -6 intercept the x-axis?

The cash difference between the selling price of an article at a profit of 2% and 12% is Rs.3. The ratio of two selling prices is

The two roots of an quadratic equation are given as x = 2/3 and x = -1/2. The equation can be written as

From the top of a platform 7 m high, the angle of elevation of a tower was 30 deg. If the platform was positioned 50√3 m away from the tower, how tall was the tower?