Quantitative Aptitude - Arithmetic Ability Questions

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.

In the following question, select the odd word pair from the given alternatives.

If 12x2 - ax + 7 = ax2 + 9x + 3 has only one (repeated) solution, then the positive integral solution of a is

Point A (2, 1) divides segment BC in the ratio 2:3. Co-ordinates of B are (1, -3) and C are (4, y). What is the value of y?

If the sum of the interior angles of a regular polygon is 1260 deg , then how many sides does it have?

If 2x + 3 = 9 then find the value of 3x + 2

19 x 23 = 437. Then 190 x 0.023 = ?

What is the square root of 9409?