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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 If the ratio of the present age of Anna and Paula is 3:4 tagged by: BTGmoderatorLU This topic has 1 expert reply and 0 member replies Top Member If the ratio of the present age of Anna and Paula is 3:4 Timer 00:00 Your Answer A B C D E Global Stats Difficult If the ratio of the present age of Anna and Paula is 3:4, what could be the ratio of their respective ages after 8 years? A. 1 : 2 B. 3 : 8 C. 3 : 5 D. 2 : 3 E. 4 : 5 The OA is E. Source: e-GMAT GMAT/MBA Expert GMAT Instructor Joined 08 Dec 2008 Posted: 12663 messages Followed by: 1246 members Upvotes: 5254 GMAT Score: 770 BTGmoderatorLU wrote: If the ratio of the present age of Anna and Paula is 3 : 4, what could be the ratio of their respective ages after 8 years? A. 1 : 2 B. 3 : 8 C. 3 : 5 D. 2 : 3 E. 4 : 5 The OA is E. Source: e-GMAT Here's a nice property of fractions: If a, b and k are positive, then (a + k)/(b + k) approaches 1 as k gets bigger. For example, the fraction (2+11)/(3+11) is closer to 1 than 2/3 is. Likewise, the fraction (1+7)/(2+7) is closer to 1 than 1/2 is. Let A = Anna's present age Let P = Paula's present age So, A/P = 3/4 In EIGHT YEARS, we can conclude that: Let A + 8= Anna's future age Let P + 8 = Paula's future age So, in EIGHT YEARS, the ratio of their ages = (A + 8)/(P + 8) By the above rule, we know that (A + 8)/(P + 8) is closer to 1 than is A/P is. In other words, (A + 8)/(P + 8) is closer to 1 than 3/4 is. Check the answer choices..... Only answer choice E (aka 4/5) is closer to 1 than 3/4 is. 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! • Free Trial & Practice Exam BEAT THE GMAT EXCLUSIVE Available with Beat the GMAT members only code • Free Practice Test & Review How would you score if you took the GMAT Available with Beat the GMAT members only code • Magoosh Study with Magoosh GMAT prep Available with Beat the GMAT members only code • Get 300+ Practice Questions 25 Video lessons and 6 Webinars for FREE Available with Beat the GMAT members only code • Free Veritas GMAT Class Experience Lesson 1 Live 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 • 5 Day FREE Trial Study Smarter, Not Harder Available with Beat the GMAT members only code • Award-winning private GMAT tutoring Register now and save up to$200

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