Quantitative Aptitude - Arithmetic Ability Questions

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

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

Expand and simplify (x + 5)2 + (x - 3)2

What is the value of a-b when a2+b2-6a-6b+18 = 0 ?

The point where the 3 medians of a triangle meet is called

Which of the following is NOT prime number?

A Lawn roller makes 20 revolutions in one hour. The radius it runs through 25 minutes is

Sonam's age after eight years will be half of her father's age. Eight years ago the ratio of their ages was 1 : 3. Find the present age of Sonam's father.