Quantitative Aptitude - Arithmetic Ability Questions

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

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

Find the odd word / letter / number from the given alternative

If cotA/√(1 + cot2A) = x, then the value of x is

The value of sinθ1+cosθ + sinθ1-cosθ

Find the marked price if the selling price is Rs. 9250 and discount is 7.5%.

A can complete a work in 20 days and B can complete the same work in 25 days. If both of them work together, then in 3 days what percent of the total work will be completed?