Quantitative Aptitude - Arithmetic Ability Questions

Iftan 450=cot∅, then the value of ∅, in radians is 

The diameters of two cylinders are in the ratio 3:2 and their volumes are equal. The ratio of their heights is

The sum of all prime numbers between 18 and 32 is:

When Gopal walks from A to B and returns from B to A on cycle, then it takes him 46 minutes. By walking both ways, it takes him 75 minutes. If he rides cycle both ways then what will be the total time (in minutes)?

Which of the following equations has real and distinct roots?

If 4(2x + 3) > 5 -­ x and 5x - ­3(2x­ - 7) > 3x -­ 1, then x can take which of the following values?

What should be added to 8(3x - ­4y) to obtain 18x ­- 18y?

The point at which the perpendicular bisectors of the sides of a triangle intersect is known as _____________________