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Quantitative Tips and StrategiesQuantitative Resources, Tools and ReferenceQuantitative Success Stories by GMAT Club MembersSPECIFIC AREASArithmeticGeometryStatisctics Rules and TipsWorld ProblemsAttachment: File comment: Quick mixture problems guide contributed by KillerSquirrel
MixtureProblemsMadeEasy.pdf [49.94 KiB]
Downloaded 7153 times
Permutations and Combinations
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Last edited by Bunuel on 14 Jun 2012, 05:44, edited 12 times in total.
Reorganized materials

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I. Starting math from the begining1.Get the necessary materialsQuite some time might have passed since your college math course, and if so, you will definitely need some books to learn or review the concepts. Fortunately, there is quite a number of books on a market that will help you in this task and, moreover, will provide with some useful strategies. The post dedicated to Math Preparation books  Best GMAT Math Prep Books (Reviews & Recommendations)If you don't know where are the white spots in your knowledge consider doing some CAT to find it out. List of All CATs2.Learn the conceptsYou may also find loads of useful information on our forum. here some useful links from our forum Basic Mathematical Principlesbasicmathematicalprinciples14576.htmlNumber Propertieslastdigitofapower70624.html#p520632Inequalitiesgraphicapproachtoproblemswithinequalities68037.htmlinequalitiesreview69016.htmlquickwaytographinequalities76255.htmlUnderstanding Coordinate Geometryunderstandingcoordinategeometry40594.htmlEquitations, Number Properties, Geometry formulas and shortcutsmathformulaandshortcuts77949.htmlBasics and tips from our GMAT Study Guide on Algebra, Arithmetic, Geometry,Combinatorics and Probability.can be found on GMAT Club's wiki which is convenient and easy to use, even though it still need more work. http://gmatclub.com/wiki/GMAT_Study_GuideBelow are the external links to websites that have explanations to various math concepts.Math reference (includes many basics and valuable techniques e.g. guide to solving word problems, etc.) http://www.purplemath.com/modules/index.htmMath prep (includes logic, Venn diagrams, number properties, algebra, geometry, probability, formula sheet and more) http://regentsprep.org/Regents/Math/matha.cfmMath prep (includes almost all you need for the GMAT but permutations and combinations) http://www.onlinemathlearning.com/Geometry atlas  a comprehensive geometry guide http://www.geometryatlas.com/Probability made simple http://gwydir.demon.co.uk/jo/probability/index.htmWord problems made easy (distance, work, mixture, ratio, interest problems and many more) http://www.onlinemathlearning.com/algeb ... blems.htmlAlgebra cheat sheets (GMAT takers need only the first or second of those available) http://tutorial.math.lamar.edu/cheat_table.aspx3.Strategies, tips tricksAfter mastering the concepts it's time to move on concuring some useful strategies. Find out what other forum users found useful from the posts bellow. Trouble with Quant? Some tips/traps that might help youtroublewithquantsometipstrapsthatmighthelpyou34329.htmlStrategy for Picking Numbers on "Number Property"strategyforpickingnumbersonnumberproperty12083.htmlStrategies for solving problems with Averageaverageacceleratedguidetosolveaveragesquickly77148.htmlTime Saving Projecttimesavingproject41436.html4.Practice questionsMost likely by now you are anxious to start your practice. Great! Still please take time to read Etiquette for Forum Participation. And Don't forget to use the Error Log and GMAT Timer. All about the error log. Below are some links to specific question compilations. Beginner's forum Reworked Questionsbeginnersforumreworkedquestions17460.htmlRemainder Problems Collection /w strategiescollectionofremainderproblemsingmat74776.htmlWorkrate questionsworkratequestionsicollectedfromgmatclub73382.htmlSequence Practices  List of Topicssequencepracticeslistoftopicsupdated42629.htmlXY Plan Practicesxyplanpracticeslistoftopicsupdated40772.htmlAbsolute Practicesabsolutepracticeslistoftopicsupdated39533.html
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29 May 2009, 10:39
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Wow what a collection!!! Thanks.
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19 Jun 2009, 19:31
Thnx for posting I really need to improve my math...

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19 Jun 2009, 19:51
gmatoverduegirl wrote: Thnx for posting I really need to improve my math... I'm glad that you find this thread useful. If you find anything interesting feel free to add.
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27 Jun 2009, 13:41
Thanks!

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09 Jul 2009, 05:05
OMG, unbelievable. Thank you timetrader!!!

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14 Jul 2009, 00:12
Ibodullo wrote: OMG, unbelievable. Thank you timetrader!!! He is da man
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24 Jul 2009, 18:41
Hey guys is there a thread with all the Geometry questions compiled?Triangles,circles,Quadrilaterals,3d figures...etc?Sorry if there is one already..could'nt find it:(
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15 Aug 2009, 16:31
I was reading through the various math posts and saw a post on items that should be committed to memory. Unfortunately I can't seem to find it. Can some one post a master list of all items, formulas or anything else that should be simply committed to memory for instant recall. Thanks. B
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18 Aug 2009, 08:17
thanks for the great post... this is very helpful

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wow thats a gr8 collection my 2 cents, this is a wonderful link for geometry http://www.mathopenref.com/index.html

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19 Aug 2009, 19:25
Wonderful collection......any more items on probability, permutation and combination?

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19 Aug 2009, 23:09
eresh wrote: Wonderful collection......any more items on probability, permutation and combination? You mean this is not sufficient: combinationspermutationsandprobabilityreferences56486.html (from above)
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20 Aug 2009, 00:46
bb wrote: eresh wrote: Wonderful collection......any more items on probability, permutation and combination? You mean this is not sufficient: combinationspermutationsandprobabilityreferences56486.html (from above) Ahem, they are

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20 Aug 2009, 00:57
eresh wrote: Ahem, they are Sounds like we may need to restructure this post a bit to be cleaner.
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20 Aug 2009, 14:42
Post has been updated
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01 Sep 2009, 18:36
The link for Math prep (logic, Venn diagrams, number properties, algebra, geometry, probability, formula sheet) has been updated into two new links (one for geometry and one for algebra).
Does anyone know if this is the same information still (was looking for the formula sheet)?

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02 Sep 2009, 00:40
want720 wrote: The link for Math prep (logic, Venn diagrams, number properties, algebra, geometry, probability, formula sheet) has been updated into two new links (one for geometry and one for algebra).
Does anyone know if this is the same information still (was looking for the formula sheet)? I updated the link to one we have internally: geometryformulaspracticesheet81427.htmlThat one is for Geometry only though.
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