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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 ## Before the regime change, the National Museum regularly... tagged by: BTGmoderatorLU ##### This topic has 1 expert reply and 0 member replies ### Top Member ## Before the regime change, the National Museum regularly... Before the regime change, the National Museum regularly displayed only one third of the artifacts in its collection; the other two thirds were kept in storage. The National Museum's curator estimates that one seventh to one fifth of the artifacts in the museum's collection disappeared during the regime change. If the National Museum now wishes to display the same number of artifacts as it did before the regime change, and if none of the missing artifacts are recovered, then the museum will keep in storage: A) 4/5 to 6/7 of artifacts in collection. B) 9/14 to 13/20 C) 3/5 to 5/7 D) 7/12 to 11/18 E) 7/18 to 5/12 The OA is D. I'm really confused with this PS question. Please, can any expert assist me with it? Thanks in advanced. ### GMAT/MBA Expert GMAT Instructor Joined 04 Oct 2017 Posted: 551 messages Followed by: 11 members Upvotes: 180 Hello LUANDATO. Let's take a look at your question. Let's suppose that the museum had 105 artifacts. So, before of the regime change, the museum showed 105/3 = 35 artifacts, and the other 70 artifacts where kept in storage. It says that between 1/7 and 1/5 of the artifacts disappeared, that is to say, between 105/7 = 15 and 105/5 = 21. So, in storage, there are between 105-21 = 84 and 105-15 = 90 artifacts right now. If the museum wants to show the same number of artifacts as it did before the regime change, then it wants to show 35 artifacts. Therefore, they will kept in storage between 84-35= 49 and 90-35 = 55 artifacts. It implies that they will keep in storage between $$49=\frac{7}{12}\cdot84\ \ \ \ and\ \ \ \ \ 55\ =\ \frac{11}{18}\cdot90\ artifacts.$$ So, the correct answer is D. I hope this explanation may help you. I'm available if you'd like a follow-up. Regards. _________________ GMAT Prep From The Economist We offer 70+ point score improvement money back guarantee. Our average student improves 98 points. Free 7-Day Test Prep with Economist GMAT Tutor - Receive free access to the top-rated GMAT prep course including a 1-on-1 strategy session, 2 full-length tests, and 5 ask-a-tutor messages. Get started now. • 5-Day Free Trial 5-day free, full-access trial TTP Quant 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 • Free Trial & Practice Exam BEAT THE GMAT EXCLUSIVE Available with Beat the GMAT members only code • Award-winning private GMAT tutoring Register now and save up to$200

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