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.

Which of the following words does NOT belong with the others?

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.

If 1 = 2, 3 = 6, 4 = 8, and + = -, what would be the value of 41 + 34 + 13 = ?

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

If P : Q = 9 : 7, then what is the value of (P – Q) : (P + Q)?

What is the obtuse angle formed by the hands of a clock when the time in the clock is 2:30?

At what point does the line 2x - 3y = 6 cuts the Y axis?