Quantitative Aptitude - Arithmetic Ability Questions

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

The two roots of an quadratic equation are given as x = 1/2 and x = -1/3. The equation can be written as

What is the reflection of the point (-3, 1) in the line x = -2?

In a rectangle

The point equidistant from the sides of a triangle is called

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

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

Which of the following is equivalent to 0.565656...?