Quantitative Aptitude - Arithmetic Ability Questions

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

A right circular cylinder is partially filled with water. Two iron spherical balls are completely immersed in the water so that the height of the water in the cylinder rises by 4 cm. If the radius of one ball is half of the other and the diameter of the cylinder is 18 cm, then the radii of the spherical balls are

The 2nd and 8th term of an arithmetic progression are 17 and -1 respectively. What is the 14th term?

If the zeroes of the polynomial x2 - ax + b are 3 and 4, then 'a' and 'b' are respectively equal to

Select the odd word/letters/number/number pair from the given alternatives.

The HCF of 24, 60 and 90 is:

What is the slope of the line perpendicular to the line passing through the points (8,­2) and (3,­1)?

On a ground , there is a vertical tower with a flagpole on its top . At a point 9 m away from the foot of the tower , the angles of elevation of the top and bottom of the flagpole are 60° and 30° respectively . The height of the flagpole is