Quantitative Aptitude - Arithmetic Ability Questions

What is the value of √[(1 ­- cosA)/(1 + cosA)]?

The incomes of S and T are in the ratio 3 : 4 and their expenditures are in the ratio 1 : 1. If S saves Rs 4000 and T saves Rs 22000, then what will be the income (in Rs) of S?

If sinA + sin2A =1 then what is the value of cos2A + cos4A

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

Select the odd word 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.

If the selling price of an article is doubled, then its loss percentage gets converted into the equal profit percentage. What is the loss percentage?