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• ### $450 Tuition Credit & Official CAT Packs FREE January 15, 2019 January 15, 2019 10:00 PM PST 11:00 PM PST EMPOWERgmat is giving away the complete Official GMAT Exam Pack collection worth$100 with the 3 Month Pack ($299) • ### The winning strategy for a high GRE score January 17, 2019 January 17, 2019 08:00 AM PST 09:00 AM PST Learn the winning strategy for a high GRE score — what do people who reach a high score do differently? We're going to share insights, tips and strategies from data we've collected from over 50,000 students who used examPAL. # In 1990 a total of x earthquakes occurred worldwide, some but not all  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics Author Message TAGS: ### Hide Tags Intern Joined: 05 Mar 2015 Posts: 28 Location: United States Concentration: Marketing, General Management In 1990 a total of x earthquakes occurred worldwide, some but not all [#permalink] ### Show Tags Updated on: 01 Apr 2015, 01:47 00:00 Difficulty: 5% (low) Question Stats: 91% (00:52) correct 9% (01:11) wrong based on 85 sessions ### HideShow timer Statistics In 1990 a total of x earthquakes occurred worldwide, some but not all of which occurred in Asia. If m o f these earthquakes occurred in Asia, which of the following represents the ratio of the number of earthquakes that occurred in Asia to the number that did NOT occur in Asia? A) x/m B) m/x C) m/(x-m) D) x/(x-m) E) 1- (m/x) _________________ "You have to learn the rules of the game. And then you have to play better than anyone else". Albert Einstein Originally posted by NYCgirl15 on 01 Apr 2015, 01:37. Last edited by Bunuel on 01 Apr 2015, 01:47, edited 4 times in total. Renamed the topic and added the OA. Director Joined: 07 Aug 2011 Posts: 535 Concentration: International Business, Technology GMAT 1: 630 Q49 V27 Re: In 1990 a total of x earthquakes occurred worldwide, some but not all [#permalink] ### Show Tags 01 Apr 2015, 01:50 1 NYCgirl15 wrote: In 1990 a total of x earthquakes occurred worldwide, some but not all of which occurred in Asia. If m o f these earthquakes occurred in Asia, which of the following represents the ratio of the number of earthquakes that occurred in Asia to the number that did NOT occur in Asia? A) x/m B) m/x C) m/(x-m) D) x/(x-m) E) 1- (m/x) if m occurred in Asia then x-m occurred in ROW . $$\frac{m}{x-m}$$ Answer C _________________ Thanks, Lucky _______________________________________________________ Kindly press the to appreciate my post !! EMPOWERgmat Instructor Status: GMAT Assassin/Co-Founder Affiliations: EMPOWERgmat Joined: 19 Dec 2014 Posts: 13325 Location: United States (CA) GMAT 1: 800 Q51 V49 GRE 1: Q170 V170 Re: In 1990 a total of x earthquakes occurred worldwide, some but not all [#permalink] ### Show Tags 01 Apr 2015, 20:48 Hi NYCgirl15, You can treat this question 'conceptually', using variables and logic to get to the answer. You can also TEST VALUES to get to the solution. We're given a couple of facts to work with: 1) There were a total of X earthquakes 2) Of those earthquakes, M of them occurred in Asia We're asked for the ratio of the number of earthquakes that occurred IN ASIA to the number of earthquakes that DID NOT occur in Asia. Let's TEST VALUES X = 5 total earthquakes M = 2 occurred in Asia Thus, there were 3 earthquakes that DID NOT occur in Asia.... The answer to the question is 2:3 We just need to plug in the values for X and M and find the match... Answer A: X/M = 5/2 NOT a match Answer B: M/X = 2/5 NOT a match Answer C: M/(X-M) = 2/(5-2) = 2/3 This IS a match Answer D: X/(X-M) = 5/(5-2) = 5/3 NOT a match Answer E: 1 - (M/X) = 1-2/5 = 3/5 NOT a match Final Answer: GMAT assassins aren't born, they're made, Rich _________________ 760+: Learn What GMAT Assassins Do to Score at the Highest Levels Contact Rich at: Rich.C@empowergmat.com # Rich Cohen Co-Founder & GMAT Assassin Special Offer: Save$75 + GMAT Club Tests Free
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Re: In 1990 a total of x earthquakes occurred worldwide, some but not all  [#permalink]

### Show Tags

21 Mar 2018, 15:21
NYCgirl15 wrote:
In 1990 a total of x earthquakes occurred worldwide, some but not all of which occurred in Asia. If m o f these earthquakes occurred in Asia, which of the following represents the ratio of the number of earthquakes that occurred in Asia to the number that did NOT occur in Asia?

A) x/m
B) m/x
C) m/(x-m)
D) x/(x-m)
E) 1- (m/x)

Since there are m earthquakes that occurred in Asia and there are x earthquakes that occurred worldwide, there are (x - m) earthquakes that occurred outside of Asia. Thus, the ratio of earthquakes that occurred in Asia to those that did not occur in Asia is m/(x - m).

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Re: In 1990 a total of x earthquakes occurred worldwide, some but not all &nbs [#permalink] 21 Mar 2018, 15:21
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