Quantitative Aptitude - Arithmetic Ability Questions

If p3 - q3 = (p - q) ( (p - q)2 + x p q ) then value of x is

A solid has 12 vertices and 30 edges. How many faces does it have?

3 numbers whose average is 112, the first number is 1/6th the sum of other 2. What is the first number?

Mummy can bake 75 cakes in 15 hours, Mummy and Sister together can bake 120 cakes in 20 hours. How many cakes Sister can bake in 30 hours?

What is the value of Cot 60°- Sec 45°?

Find the perimeter (in cm) of a semicircle of radius 28 cm.

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

If x + 1/x = 6, then value of x2 + 1/x2 is