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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 ## Data sufficiency tagged by: Nury Yeashfi ##### This topic has 2 expert replies and 1 member reply ## Data sufficiency If y=1+1/x where x>1, then y could equal to which of the following? a. 1/5 b. 5/8 c. 9/7 d. 15.11 e. 8/7 ### GMAT/MBA Expert GMAT Instructor Joined 08 Dec 2008 Posted: 13046 messages Followed by: 1253 members Upvotes: 5254 GMAT Score: 770 Nury Yeashfi wrote: If y = 1 + 1/x where x >1 , then y could equal to which of the following? a. 1/5 b. 5/8 c. 9/7 d. 15.11 e. 8/7 Take: y = 1 + 1/x Rewrite as: y = x/x + 1/x Simplify: y = (x + 1)/x So, we're looking for an answer choice that can be expressed as a fraction in which the numerator is 1 greater than the denominator. Answer: E Cheers, Brent _________________ Brent Hanneson â€“ Creator of GMATPrepNow.com Use my video course along with Sign up for free Question of the Day emails And check out all of these free resources GMAT Prep Now's comprehensive video course can be used in conjunction with Beat The GMATâ€™s FREE 60-Day Study Guide and reach your target score in 2 months! ### GMAT/MBA Expert GMAT Instructor Joined 02 Jun 2008 Posted: 2531 messages Followed by: 353 members Upvotes: 1090 GMAT Score: 780 If x > 1, then 1/x is between 0 and 1. So 1 + (1/x) will be between 1 and 2, and answers C and E are both possible (for C, x = 7/2, and for E, x = 7). If there's a typo in D, and instead it's meant to read "15/11", then D is also possible (x = 11/4). It's only if the question tells you x is an integer that E becomes the lone correct answer among the choices, but the question doesn't tell us that. So the question has two or three right answers, which can't happen on the GMAT - where is it from? _________________ If you are looking for online GMAT math tutoring, or if you are interested in buying my advanced Quant books and problem sets, please contact me at ianstewartgmat at gmail.com ### Top Member Newbie | Next Rank: 10 Posts Joined 19 Jul 2018 Posted: 4 messages In the figure below AB=BC=CD. If the area of the Traingle CDE is 42,what is the area of the triangle ADG? --------- www.mybkexperience.com similar triangle sides of CDE are 1/3 of the Side of ADG. 9 X Area of triangle CDE = area of Triangle ADG Area of Triangle ADG =9 X 42 Area of Triangle ADG =378 • FREE GMAT Exam Know how you'd score today for$0

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