Quantitative Aptitude - Arithmetic Ability Questions

Find the odd word/letters/number from the given alternatives.

If x = y + 2 then x3 - y3 - z3 is

If 40 is 0.05% of x, then what is the value of x?

Expand and simplify (3x + 2)2*(4x -­ 3) -­ (2x3 - 9x2 + 12x -­ 24)

In ∆DEF measure of angle E is 90°. If secD = 25/7, and DE = 1.4cm, then what is the length (in cm) of side DF?

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

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

XYZ is a right angled triangle and ∠Y = 90°. If XY = 2.5 cm and YZ = 6 cm then the circumradius of ∆XYZ is