Is x > 0? : GMAT Data Sufficiency (DS)
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Is x > 0?

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Manager
Joined: 16 Feb 2012
Posts: 237
Concentration: Finance, Economics
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Kudos [?]: 285 [1] , given: 121

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17 Aug 2013, 08:10
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74% (02:15) correct 26% (01:26) wrong based on 101 sessions

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Is x > 0?

(1) |x + 3| < 4

(2) |x – 3| < 4
[Reveal] Spoiler: OA

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Intern
Joined: 11 Jul 2013
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Kudos [?]: 10 [0], given: 92

Re: Is x > 0? [#permalink]

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17 Aug 2013, 10:30
Stiv wrote:
Is x > 0?

(1) |x + 3| < 4

(2) |x – 3| < 4

(1) |x + 3| < 4
Case 1:
x+3 < 4
x<1

Case 1:
-x-3 < 4
-x < 7
x > -7

x may be greater or less than zero. Hence insufficient.

(2) |x – 3| < 4
Case 1:
x-3 < 4
x < 7

Case 2:
-x+3 < 4
-x < 1
x > -1

x may be greater or less than zero. Hence insufficient.

(1) and (2) together. may be less or more than zero. Hence insufficient.[/b]

Kudos if my post helped...
Re: Is x > 0?   [#permalink] 17 Aug 2013, 10:30
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