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100 points for $49 worth of Veritas practice GMATs FREE VERITAS PRACTICE GMAT EXAMS Earn 10 Points Per Post Earn 10 Points Per Thanks Earn 10 Points Per Upvote ## Absolute Value tagged by: ##### This topic has 2 member replies ## Absolute Value If absolute value of n+5= 5, what is the value of n? (1)n^2 is not equal to 0. (2)n^2 + 10n = 0 GMAT Instructor Joined 01 May 2008 Posted: 189 messages Followed by: 1 members Upvotes: 25 Test Date: 2/18/2006 GMAT Score: 750+ The problem statement tells us that the absolute value of n+5=5. Thus, we have either that: a) n+5=5, and n=0 or b)n+5 = -5, and n=-10 From statement 1, we are told n^2 is not equal to 0. Thus, n is not equal to 0. So, n must be -10. Statement 1 gives us sufficient information to solve for n. From statement 2, we are told: n^2 + 10n = 0. We can rewrite this: n(n+10)=0. This equation has two solutions: n=0 and n=-10. Thus, statement 2 does not give us a definitive answer for n and is not sufficient. Since only statement 1 was sufficient, the answer is A. _________________ Tatiana Becker | GMAT Instructor | Veritas Prep Master | Next Rank: 500 Posts Joined 11 Jun 2008 Posted: 167 messages Followed by: 1 members Upvotes: 2 good one, tatiana...always fail to rem the negative/positive feature of integers....my bad! • Get 300+ Practice Questions 25 Video lessons and 6 Webinars for FREE Available with Beat the GMAT members only code • 5 Day FREE Trial Study Smarter, Not Harder Available with Beat the GMAT members only code • Magoosh Study with Magoosh GMAT prep Available with Beat the GMAT members only code • Free Trial & Practice Exam BEAT THE GMAT EXCLUSIVE Available with Beat the GMAT members only code • 5-Day Free Trial 5-day free, full-access trial TTP Quant Available with Beat the GMAT members only code • Award-winning private GMAT tutoring Register now and save up to$200

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