Quantitative Aptitude - Arithmetic Ability Questions

What is the value of xy if x - y = 3 and x2+y2=15?

If Tan A = 15/8 and Tan B = 7/24, then Cos(A - B) = ?

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

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 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.

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

If cotθ = 4, then the value of 5sinθ+3cosθ5sinθ-3cosθ is

For triangle ABC, find equation of median AD if co­-ordinates of points A, B and C are (2,­4), (3,0) and (5,­2) respectively?