Quantitative Aptitude - Arithmetic Ability Questions

If 3x^2 + ax + 4 is perectly divisible by x - 5, then the value of a is :

The value of cos (1110°) is

The length of one side of a rhombus is 61 cm and its area is 1320 sq.cm. Find the sum of the lengths of its diagonals?

In the following question, select the related number from the given alternatives.

695 : 659 : : 839 : ?

If cosx.cosy + sinx.siny = -1 then cosx + cosy is

If ΔABC is an equilateral triangle of side 16 cm, then the length of altitude is

The base of a prism is in the shape of an equilateral triangle. If the perimeter of the base is 18 cm and the height of the prism is 20 cm, then what is the volume (in cm3) of the prism?

In the given figure, ABCD is a square, BCXYZ is a regular pentagon and ABE is an  equilateral triangle. What is the value in deg of EBZ?