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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 ## mgmat 4 ##### This topic has 2 expert replies and 8 member replies ## mgmat 4 If t and u are positive integers, what is the value of t-2u-3? (1) t-3u-2 = 1/36 (2) t(u-1) = 1/6 qa is a statement one renders t=1 and u as 6 but cant we account for -6 also? THis made me choose statement one as insuf. _________________ Appetite for 700 and I scraped my plate! Master | Next Rank: 500 Posts Joined 27 Dec 2007 Posted: 423 messages Followed by: 2 members Upvotes: 36 Test Date: May 20, 2008 GMAT Score: 770 Are you sure that you have written the question correctly. As written the question and the answer does not make any sense. Kindly pay more attention to what you are typing. _________________ simplyjat Legendary Member Joined 06 May 2007 Posted: 789 messages Followed by: 6 members Upvotes: 15 Target GMAT Score: 710 If t and u are positive integers, what is the value of t-2u-3? (1) t-3u-2 = 1/36 (2) t(u-1) = 1/6 qa is a sorry html problem _________________ Appetite for 700 and I scraped my plate! Legendary Member Joined 06 May 2007 Posted: 789 messages Followed by: 6 members Upvotes: 15 Target GMAT Score: 710 If t and u are positive integers, what is the value of (t^-2)(u^-3)? (1) (t^-3)(u^-2) = 1/36 (2) t(u^-1) = 1/6 pesky pc problem fixed.. thanks for the patience. qa is a _________________ Appetite for 700 and I scraped my plate! Master | Next Rank: 500 Posts Joined 27 Dec 2007 Posted: 423 messages Followed by: 2 members Upvotes: 36 Test Date: May 20, 2008 GMAT Score: 770 Where did you get the question from? There are no integer values for t & u for which (t^-3)(u^-2) = 1/36 36 = 2*2*3*3 but the combined power of the expression is 5. _________________ simplyjat Legendary Member Joined 06 May 2007 Posted: 789 messages Followed by: 6 members Upvotes: 15 Target GMAT Score: 710 this came from manhattan gmat question bank. _________________ Appetite for 700 and I scraped my plate! Master | Next Rank: 500 Posts Joined 27 Dec 2007 Posted: 423 messages Followed by: 2 members Upvotes: 36 Test Date: May 20, 2008 GMAT Score: 770 resilient wrote: this came from manhattan gmat question bank. Then check the question again. you are missing something. _________________ simplyjat Newbie | Next Rank: 10 Posts Joined 29 Jan 2015 Posted: 1 messages i am looking at the exact same problem right now and have no clue how to move forward since there are no integers that make up 1/36. he did not type the problem wrong, it is correct. please somebody help Attachments This post contains an attachment. You must be logged in to download/view this file. Please login or register as a user. ### GMAT/MBA Expert GMAT Instructor Joined 25 May 2010 Posted: 15029 messages Followed by: 1859 members Upvotes: 13060 GMAT Score: 790 Quote: If t and u are positive integers, what is the value of (t^-2)(u^-3)? (1) (t^-3)(u^-2) = 1/36 (2) t(u^-1) = 1/6 What is the value of (1/tÂ²)(1/uÂ³)? Statement 2: t/u = 1/6. Case 1: t=1, u=6 In this case, (1/tÂ²)(1/uÂ³) = (1/1Â²)(1/6Â³). Case 2: t=2, u=12 In this case, (1/tÂ²)(1/uÂ³) = (1/2Â²)(1/12Â³). Since (1/tÂ²)(1/uÂ³) can be different values, INSUFFICIENT. Statement 1: (1/tÂ³)(1/uÂ²) = 1/36. Case 1: t=1, u=6 This case also satisfies statement 1, since (1/1Â³)(1/6Â²) = 1/36. No other pair of positive integers will satisfy Statement 1. Since only Case 1 is possible, (1/tÂ²)(1/uÂ³) = (1/1Â²)(1/6Â³). SUFFICIENT. The correct answer is A. _________________ Mitch Hunt Private Tutor for the GMAT and GRE GMATGuruNY@gmail.com If you find one of my posts helpful, please take a moment to click on the "UPVOTE" icon. Available for tutoring in NYC and long-distance. For more information, please email me at GMATGuruNY@gmail.com. Student Review #1 Student Review #2 Student Review #3 Last edited by GMATGuruNY on Fri Aug 10, 2018 7:50 am; edited 1 time in total Free GMAT Practice Test How can you improve your test score if you don't know your baseline score? Take a free online practice exam. Get started on achieving your dream score today! Sign up now. Master | Next Rank: 500 Posts Joined 13 Sep 2016 Posted: 186 messages GMATGuruNY wrote: Quote: If t and u are positive integers, what is the value of (t^-2)(u^-3)? (1) (t^-3)(u^-2) = 1/36 (2) t(u^-1) = 1/6 What is the value of (1/tÂ²)(1/uÂ³)? Statement 2: t/u = 1/6. Case 1: t=1, u=6 In this case, (1/tÂ²)(1/tÂ³) = (1/1Â²)(1/6Â³). Case 2: t=2, u=12 In this case, (1/tÂ²)(1/uÂ³) = (1/2Â²)(1/12Â³). Since (1/tÂ²)(1/uÂ³) can be different values, INSUFFICIENT. Statement 1: (1/tÂ³)(1/uÂ²) = 1/36. Case 1: t=1, u=6 This case also satisfies statement 1, since (1/1Â³)(1/6Â²) = 1/36. No other pair of positive integers will satisfy Statement 1. Since only Case 1 is possible, (1/tÂ²)(1/uÂ³) = (1/1Â²)(1/6Â³). SUFFICIENT. The correct answer is A. Hello Mitch, Under case 1 "In this case, (1/tÂ²)(1/tÂ³) = (1/1Â²)(1/6Â³). " The highlighted value must be u^3. ### GMAT/MBA Expert GMAT Instructor Joined 25 May 2010 Posted: 15029 messages Followed by: 1859 members Upvotes: 13060 GMAT Score: 790 alanforde800Maximus wrote: Hello Mitch, Under case 1 "In this case, (1/tÂ²)(1/tÂ³) = (1/1Â²)(1/6Â³). " The highlighted value must be u^3. Fixed! Thanks for pointing out the typo. _________________ Mitch Hunt Private Tutor for the GMAT and GRE GMATGuruNY@gmail.com If you find one of my posts helpful, please take a moment to click on the "UPVOTE" icon. Available for tutoring in NYC and long-distance. For more information, please email me at GMATGuruNY@gmail.com. Student Review #1 Student Review #2 Student Review #3 Free GMAT Practice Test How can you improve your test score if you don't know your baseline score? Take a free online practice exam. Get started on achieving your dream score today! 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