Quantitative Aptitude - Arithmetic Ability Questions

If xy+yz+zx = 1, then the value of (1+y2)(x+y)(y+z) ?

If a(x + y) = b(x - y) = 2ab, then the value of 2(x2 + y2)

If the volume of a cylinder is 3850 cubic cm and height is 25 cm, what is its radius? (Take π = 22/7)

If 15 persons can do a job in 30 days, then 30 persons with twice the efficiency can do the same job in how many days?

If x , y, and z are real numbers such that (x - 3)2 + (y - 4)2 + (z - 5)2 = 0 then (x+y+z) is equal to

In the following question, select the odd letter/letters from the given alternatives.

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?

If (x - 4) (x2 + 4x + 16) = x3 - P, then P is equal to