Quantitative Aptitude - Arithmetic Ability Questions

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

Find the volume (in cub.cm) of a hemisphere of diameter 21 cm.

The total surface area of a cube is 337.5 cm². Find its side (in cm).

If 2(3x ­- 4) -­ 2 < 4x ­- 2 ≥ 2x -­ 4; then the value of x is

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

In the following question, four number pairs are given. The number on left side of (–) is related to the number of the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives .

If 5 -­ x > 1 + 3x and 5 + 5x ≥ 2 + 2x; then x can take which of the following values?

Determine the value of a/b + b/a when a + b = 8 and ab = 4.