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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 ## is rst 1? tagged by: Brent@GMATPrepNow ##### This topic has 3 expert replies and 1 member reply ## is rst 1? Is rst=1 ? 1) rs=1 2) st=1 how do you evaluate the statements together? ### GMAT/MBA Expert GMAT Instructor Joined 08 Dec 2008 Posted: 12655 messages Followed by: 1245 members Upvotes: 5254 GMAT Score: 770 kobel51 wrote: Is rst=1 ? 1) rs=1 2) st=1 Target question: Is rst=1? Statement 1: rs = 1 No information about t INSUFFICIENT Statement 2: st = 1 No information about r INSUFFICIENT Statements 1 and 2 combined So, rs = 1 and st = 1 This means that rs/st = 1/1 Simplify to get r/t = 1 This tells us that r = t, so this is all that we can conclude one we combine the statements. If r = t, there are still several values of r, s and t that satisfy the both statements. Here are two: Case a: r = 1, s = 1 and t = 1, in which case rst = 1 Case b: r = 0.5, s = 2 and t = 0.5, in which case rst = 0.5 Since we cannot answer the target question with certainty, the combined statements are NOT SUFFICIENT Answer = E Cheers, Brent _________________ Brent Hanneson – Creator of GMATPrepNow.com Use our video course along with Sign up for our free Question of the Day emails And check out all of our free resources GMAT Prep Now's comprehensive video course can be used in conjunction with Beat The GMAT’s FREE 60-Day Study Guide and reach your target score in 2 months! ### GMAT/MBA Expert GMAT Instructor Joined 21 May 2010 Posted: 1053 messages Followed by: 98 members Upvotes: 335 The solution below is taken from the GMATFix App. -Patrick _________________ Ask me about tutoring. Master | Next Rank: 500 Posts Joined 25 Jul 2011 Posted: 468 messages Followed by: 4 members Upvotes: 29 can different variables represent the same number and same varible represents two differ numbers ???? ### GMAT/MBA Expert GMAT Instructor Joined 21 May 2010 Posted: 1053 messages Followed by: 98 members Upvotes: 335 Yes. Each variable has a specific value (that's why from x^2=1, we don't know what x is), but two variables can share the same value. _________________ Ask me about tutoring. • Free Veritas GMAT Class Experience Lesson 1 Live Free Available with Beat the GMAT members only code • Award-winning private GMAT tutoring Register now and save up to$200

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