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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 it seems to be easy This topic has 1 expert reply and 1 member reply it seems to be easy If a and b are integers and a is not equal to b, is ab > 0? (1) a^b > 0 (2) a^b is a non-zero integer Junior | Next Rank: 30 Posts Joined 27 Jul 2008 Posted: 16 messages Upvotes: 2 ricaototti wrote: If a and b are integers and a is not equal to b, is ab > 0? (1) a^b > 0 (2) a^b is a non-zero integer Is the ans C? Lets plug values Stm1. assume a=2, b=3, ab>0 but when a=2, b=-3 in this case ab<0 so, insufficient Stm2. a^b is non zero, means it could be negative or positive similarly it is insufficient. Combining 1+2, it is sufficient, when a=2, b=-3, Hence, C GMAT/MBA Expert GMAT Instructor Joined 08 Jan 2008 Posted: 3225 messages Followed by: 611 members Upvotes: 1710 GMAT Score: 800 ricaototti wrote: If a and b are integers and a is not equal to b, is ab > 0? (1) a^b > 0 (2) a^b is a non-zero integer Starting with the question: is ab > 0? In other words, do a and b have the same sign? Let's examine (1): a^b > 0 a and b could both be positive, which gives us a "yes" answer. However, a could be negative and b could be an even positive number, giving us a "no" answer. We can get both a "yes" and a "no": insufficient. (If you prefer to pick numbers, we could have picked: a=2 and b=3, and 2*3 IS greater than 0; or a=-2 and b=2, and -2*2 is NOT greater than 0.) (2) we can pick the exact same numbers to show that (2) gives us both a "yes" and a "no": insufficient. Since the same set of numbers satisfy both (1) and (2), the correct answer is (E), not enough information. Free GMAT Practice Test under Proctored Conditions! - Find a practice test near you or live and online in Kaplan's Classroom Anywhere environment. Register today! • Get 300+ Practice Questions 25 Video lessons and 6 Webinars for FREE 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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