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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 ## current tagged by: ##### This topic has 2 expert replies and 1 member reply ## current The cause of the wreck of the ship Edmund Fitzgeraid in a severe storm on lake Superior is still unknown , when the sunken wreckage of the vessel was found, searchers discovered the hull in two pieces lying close together, The stormâ€™s violent waves would have caused separate pieces floating even briefly on the surface to drift apart. Therefore, the breakup of the hull can be ruled out as the cause of the sinking. Which of the following is an assumption on which the argument depends? A. Ships as large as the Edmund Fitzgerald rarely sink except in the most violent weather. B. Under water currents at the time of the storm did not move the separated pieces of the hull together again. C. Pieces of the hull would have sunk more quickly than the intact hull would have D. The waves of the storm were not violent enough to have caused the breakup E. If the ship broke up before sinking , the pieces of the hull would not have remained on the surface for very long OA B Please suggest why B is correct. I mean how it is linked Legendary Member Joined 01 Nov 2009 Posted: 1325 messages Followed by: 14 members Upvotes: 105 2 pieces were found close to eachother, author said that storm's violent wave WOULD HAVE brought separate pieces floating on the surface to drift apart so breakup can be ruled out as a reason for sinking. THis is because if breakup occured then stormed would would have moved them apart.. Now B says author relies on assumption that there is nothing(e.egunder water currents) that can make them come together. P.s. Pls ignore spelling mistakes, im a too tired & sleeply, Just going to sleep after this. _________________ Premise: If you like my post Conclusion : Press the Thanks Button ### GMAT/MBA Expert GMAT Instructor Joined 17 May 2011 Posted: 199 messages Followed by: 119 members Upvotes: 192 GMAT Score: 780 The explanation above is very good. You can also apply the Assumption Negation Technique to this question. We're asked to find an assumption on which the argument *depends*, and if the argument truly depends on this assumption, it must be the case that without this assumption, the argument would crumble. So let's say we *didn't* have the assumption in (B) -- let's say, that is, that underwater currents at the time of the storm may quite well have moved originally separated pieces together again. Well, the conclusion of the argument supports itself explicitly only with the evidence that if the hull had broken up when the ship was still on the surface, the pieces of the hull would have been pushed apart by the storm. But if the underwater currents could then have pushed them together again, it'd be quite plausible that the hull broke, forcing the ship to sink, that the hull pieces were driven apart by the storm, and that they were then pushed back together underwater to be found lying close to each other later. So it'd then be invalid to conclude that the hull's breaking couldn't have happened first to cause the sinking. So in order for the argument's conclusion to be valid, it relies on the assumption in B. jainrahul1985 wrote: The cause of the wreck of the ship Edmund Fitzgeraid in a severe storm on lake Superior is still unknown , when the sunken wreckage of the vessel was found, searchers discovered the hull in two pieces lying close together, The stormâ€™s violent waves would have caused separate pieces floating even briefly on the surface to drift apart. Therefore, the breakup of the hull can be ruled out as the cause of the sinking. Which of the following is an assumption on which the argument depends? A. Ships as large as the Edmund Fitzgerald rarely sink except in the most violent weather. B. Under water currents at the time of the storm did not move the separated pieces of the hull together again. C. Pieces of the hull would have sunk more quickly than the intact hull would have D. The waves of the storm were not violent enough to have caused the breakup E. If the ship broke up before sinking , the pieces of the hull would not have remained on the surface for very long OA B Please suggest why B is correct. I mean how it is linked _________________ Ashley Newman-Owens GMAT Instructor Veritas Prep Post helpful? Mosey your cursor on over to that Thank button and click, please! I will bake you an imaginary cake. Enroll in a Veritas Prep GMAT class completely for FREE. Wondering if a GMAT course is right for you? Attend the first class session of an actual GMAT course, either in-person or live online, and see for yourself why so many students choose to work with Veritas Prep. Find a class now! ### GMAT/MBA Expert GMAT Instructor Joined 12 Sep 2010 Posted: 905 messages Followed by: 122 members Upvotes: 378 GMAT Score: 760 jainrahul1985 wrote: The cause of the wreck of the ship Edmund Fitzgeraid in a severe storm on lake Superior is still unknown , when the sunken wreckage of the vessel was found, searchers discovered the hull in two pieces lying close together, The stormâ€™s violent waves would have caused separate pieces floating even briefly on the surface to drift apart. Therefore, the breakup of the hull can be ruled out as the cause of the sinking. Which of the following is an assumption on which the argument depends? A. Ships as large as the Edmund Fitzgerald rarely sink except in the most violent weather. B. Under water currents at the time of the storm did not move the separated pieces of the hull together again. C. Pieces of the hull would have sunk more quickly than the intact hull would have D. The waves of the storm were not violent enough to have caused the breakup E. If the ship broke up before sinking , the pieces of the hull would not have remained on the surface for very long OA B Please suggest why B is correct. I mean how it is linked It is often helpful to think of assumption questions using the same mindset as weaken questions. Thinking "what could make this wrong?" can lead you to expose the assumption. There's no way to predict B - there's nothing in the argument about under water currents - but you can predict an answer that does what B DOES, or goes in the same direction - and then you would be able to recognize B for the right answer. Here, the argument says that the ship must have broken apart AFTER it sank, since if it broke apart BEFORE it sank, the waves would've carried the two piece away from each other. "What could make this wrong?" Well, if the ship broke apart, and the waves carried the two piece apart, but somehow they CAME BACK - that would be a case where the argument would be mistaken. Therefore, in order for the argument to be right, we HAVE to assume that the pieces did NOT float back together after the waves separated them - for example by water currents. With this reasoning in mind, B becomes the obvious choice. _________________ Geva Senior Instructor Master GMAT 1-888-780-GMAT https://www.mastergmat.com 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. • Get 300+ Practice Questions 25 Video lessons and 6 Webinars for 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 • Award-winning private GMAT tutoring Register now and save up to$200

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