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This PS looks like DS

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Director
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Joined: 19 Mar 2007
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This PS looks like DS [#permalink] New post 23 Apr 2007, 23:43
00:00
A
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D
E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
This PS looks like DS :P
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Senior Manager
Senior Manager
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 [#permalink] New post 24 Apr 2007, 00:54
x>y^2>z^4 -> x is a positive no.

this means that x, y and z can be positive nos greater than 1 in that case x>y>z hence I could be true.x, y and z can be positive nos greater than 0 but less than x>z>y hence III could also be true and i think z>y>x is not possible (i am not sure about the last statement).

Javed.

Cheers!
Director
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 [#permalink] New post 24 Apr 2007, 03:39
javed wrote:
x>y^2>z^4 -> x is a positive no.

this means that x, y and z can be positive nos greater than 1 in that case x>y>z hence I could be true.x, y and z can be positive nos greater than 0 but less than x>z>y hence III could also be true and i think z>y>x is not possible (i am not sure about the last statement).

Javed.

Cheers!


I also thought this way but it is not correct...
Director
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 [#permalink] New post 24 Apr 2007, 11:44
(II) is also possible but I don't understand why :cry:
Manager
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 [#permalink] New post 24 Apr 2007, 12:50
Three cases if treated seperate.

Lets say X=0.9, Y= 1/3, Z=1/2
Then statement I holds good

Statement II is good if
X=0.2, Y=1/3 and Z=1/2

Statement III is good if
X= 0.9, Y=1/3, Z=1/2

All statements are true if they are treated seperately.
  [#permalink] 24 Apr 2007, 12:50
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