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GMAT Prep 2

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GMAT Prep 2 [#permalink] New post 09 Nov 2005, 17:24
if x>y^2>z^4 which of the following statements could be true

1. x>y>z
2.z>y>x
3.x>z>y

a. 1
b. 1 2
c. 1 3
d. 2 3
e 1 2 3

Last edited by gotoknow3 on 09 Nov 2005, 18:10, edited 2 times in total.
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Re: GMAT Prep 2 [#permalink] New post 09 Nov 2005, 21:18
E. 1, 2 and 3 because it says could be. so

i. suppose, if x = 10, y = 3 and z = 1, then 1 (x>y>z) is true.
ii. suppose, if x = 0.5, y = 0.6 and z = 0.7, then 3 (z>y>x) is true.
iii. suppose, if x = 10, y = -3 and z = 1, then 3 (x>z>y) is true.

so, it is E.
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 [#permalink] New post 10 Nov 2005, 06:11
Damn; forgot to consider -ve and decimals;
good job Himalaya
OA is E
  [#permalink] 10 Nov 2005, 06:11
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GMAT Prep 2

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