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If x > (y^2) > (z^4), which of the following

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If x > (y^2) > (z^4), which of the following [#permalink] New post 12 May 2007, 14:57
If x > (y^2) > (z^4), which of the following statements could be true?

I. x > y > z
II. z > y > x
III. x > z > y


i know i could just plug numbers in and solve the problem, but is there a quicker way of doing this problem?


answer is I,II,and III.
Senior Manager
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 [#permalink] New post 12 May 2007, 15:34
i don't think there is a formula that can quicken he process, but if you plug numbers in it will work just fine (don't forget about negative numbers)

Answer is 1,2,and 3
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Re: GMATPrep: XYZ [#permalink] New post 12 May 2007, 19:02
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kookoo4tofu wrote:
If x > (y^2) > (z^4), which of the following statements could be true?

I. x > y > z
II. z > y > x
III. x > z > y

i know i could just plug numbers in and solve the problem, but is there a quicker way of doing this problem?

answer is I,II,and III.


all are possible.

I. if x = 5, y = 4, z = 1
II. if x = .5, y = .6, z = .7
III. if x = 30, y = -5, z = -2
Re: GMATPrep: XYZ   [#permalink] 12 May 2007, 19:02
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If x > (y^2) > (z^4), which of the following

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