Quantitative Aptitude - Arithmetic Ability Questions

How many natural numbers are there between √261 and √45109?

A can do a piece of work in 20 days and B in 15 days. With help of C, they finish the work in 5 days. C can alone do the work in

The reciprocal of the sum of the reciprocals of 8/7 and 5/6 is:

Select the odd number from the given alternatives.

If(x + y)2 = xy + 1 and x3 – y3 = 1, then what is the value of x – y?

If (x/5) + (5/x) = – 2, then what is the value of x3?

If one root of the equation Ax2 +Bx + C = 0 is two and a half times the others, then which of the following is TRUE?

The sum of the lengths of the edges of a cube is equal to the perimeter of a square. If the numerical value of the volume of the cube is equal to the numerical value of the area of the square, then the length of one side of the square is