Quantitative Aptitude - Arithmetic Ability Questions

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

Find out the odd word/letters/number/number pair from the given alternatives.

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

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

A number when divided by the sum of 555 and 445 gives two times their difference as quotient and 30 as the remainder. The number is

If (secA - tanA)2 = x, then the value of x is

Which of the following ratios can be the ratio of the sides of a right angled triangle?

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