Quantitative Aptitude - Arithmetic Ability Questions

D and E are points on the sides AB and AC respectively of ΔABC such that DE is parallel to BC and AD:DB = 4:5, CD and BE intersect each other at F. Then the ratio of the areas of ΔDEF and ΔCBF

If 90% of A = 30% of B and B = x% of A, find x.

If 1/√(1 -­ sin2A) = x, then the value of x is

What is the value of x4+y4 when the value of x3+y3=8 and x+y=2 ?

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

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

 In the following question, select the odd letter/letters 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.