Quantitative Aptitude - Arithmetic Ability Questions

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

What are the co­ordinates of the mid point of the segment joining points C(5,­-2) and D(­-1,8).

Simplify 81x2 - 49y29x + 7y

What is the value of 13 x 4932?

In the following question, four number pairs are given. The number on left side of (–) is related to the number on 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.

Which of the following option is CORRECT about the figure shown below?

The sum of the present ages of a father and his son is 60 yrs. Six years ago, fathers age was five times the age of the son. After 6 yrs, son's age will be

Simple interest on a sum for 10 years is equal to 5% of the principal. In how many years interest will be equal to the principal?