Quantitative Aptitude - Arithmetic Ability Questions

If x2+1x2-6, then find the value of 2x(x-1)x3-x2-x+1

If a cylinder of radius 7 cm and height 9 cm is melted and constructed into a cone of the same radius, what will be the height of this cone?

What is the largest 4 digit number which is exactly divisible by 81?

If (1 -­ cosA)/(1 + cosA) = x, then the value of x is

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

Find the value of x if 0.08x + 0.04y = 10 and 0.2(x-1) + 0.4y = 24.8

A tetrahedron has 4 vertices. How many edges does it have?

Find out the odd word/letters/number pair from the given alternatives