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# If w > x^2 >= y which of the following must be true?

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Manager
Joined: 10 Oct 2005
Posts: 52
Followers: 1

Kudos [?]: 0 [0], given: 0

If w > x^2 >= y which of the following must be true?  [#permalink]  25 Jun 2006, 16:11
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If w > x^2 >= y which of the following must be true?
I. x >= 0
II. w > | x |
III. w > y >= x

(A) None
(B) II only
(C) I and II only
(D) I and III only
(E) I, II and III
Senior Manager
Joined: 07 Jul 2005
Posts: 406
Location: Sunnyvale, CA
Followers: 2

Kudos [?]: 4 [0], given: 0

(A)

I. x >= 0 .. not sufficient. x can be -ve/+ve
II. w > |x| , may not be true for fractional values of x
III. not sufficient either.
Manager
Joined: 14 Mar 2006
Posts: 209
Followers: 1

Kudos [?]: 4 [0], given: 0

agree with A
remember the fractional values for II.
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