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# Analysis of Most Difficult Question Categories/Tags in Forum

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Joined: 04 Dec 2002
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Analysis of Most Difficult Question Categories/Tags in Forum [#permalink]

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10 Jan 2013, 00:18
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Analysis of Most Difficult Questions and Categories

We have collected 400 of the hardest questions discussed on GMAT Club (you can find the list of 100 of them here: Hardest GMAT Questions).
While collecting them, we have looked at the tags and categories to see if we can spot some patterns or make any conclusions - this post is about what we have learned.

Observation #1: Quant questions in the OG are not Representative

20% of the hardest PS questions and 40%!!! of the DS questions were from GMAT Prep and only 13% and 9% respectfully were from the Official Guide. That tells me that GMAT Prep is pretty tricky and continues to surprise test takers while the Official Guide is not as representative of the difficult questions you are to encounter on the GMAT

Observation #2: Arithmetic is harder and more important than Probability

15% of the 100 hardest PS questions were arithmetic and 31% of DS were inequalities, ahead of combinations, which were 9% in PS. Did you know that around 50% of the questions you encounter on the GMAT will be arithmetic questions? If you are short on time and choosing whether to spend the next 3 days in probability or in arithmetic, choose arithmetic.

Observation #3: Parallel Structure is a challenge in SC

SC is the most common question type on the Verbal portion of the test and most issues come up with Parallel Structure, Modifiers, and Subject Verb agreement - make sure you ace these 3 topics before your appointment.

Observation #4: Verbal questions in the OG are Representative!

For Verbal, the difference between OG and GMAT Prep is not as significant as in the quant, which indicates that OG is a pretty good source for your verbal practice and it is very representative of the GMAT. (Here of course we had to make an assumption that GMAT Prep is representative of the actual GMAT, which I hope you caught since Assumptions are the most problematic area in CR). Anyway, you want to value and savor those Verbal questions as no other source has them as good, as hard, and as original.

Top 10 Hardest Question Areas by Question Type

(click to see the questions related to each topic/tag). Freq = Frequency of the tag/category in the top 100

 Problem Solving # Tag Name Freq 1 Source: GMAT Prep 20 2 Source: Manhattan GMAT 15 3 Arithmetic 15 4 Must or Could be True Questions 15 5 Source: Official Guide 13 6 Word Problems 13 7 Work/Rate Problems 12 8 Absolute Values/Modules 11 9 Number Properties 9 10 Combinations 9

 Data Sufficiency # Tag Name Freq 1 Source: GMAT Prep 40 2 Inequalities 31 3 Absolute Values/Modules 21 4 Source: Manhattan GMAT 12 5 Number Properties 10 6 Source: Official Guide 9 7 Coordinate Geometry 9 8 Divisibility/Multiples/Factors 9 9 Algebra 9 10 Geometry 8

 Critical Reasoning # Tag Name Freq 1 Assumption 21 2 Weaken 16 3 Source: LSAT 15 4 Conclusion 11 5 Method of Reasoning 9 6 Must be True 8 7 Inference 7 8 Evaluate Argument 6 9 Resolve Paradox 6 10 Strengthen 6

 Sentence Correction # Tag Name Freq 1 Parallel Structure 18 2 Modifiers 17 3 Subject Verb Agreement 14 4 Comparisons 12 5 Pronouns 12 6 Source: GMAT Prep 12 7 Construction 11 8 Idioms 11 9 Source: Official Guide 10 10 Verb Tense/Form 8

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Re: Analysis of Most Difficult Question Categories/Tags in Forum [#permalink]

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10 Jan 2013, 16:09

Kudos [?]: 9296 [0], given: 1169

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Re: Analysis of Most Difficult Question Categories/Tags in Forum [#permalink]

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11 Jan 2013, 10:35

Could you please let us know if we have any consolidated distinct collections of that 400 hardest questions discussed on GMAT Club?

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Kudos [?]: 1961 [0], given: 152

Re: Analysis of Most Difficult Question Categories/Tags in Forum   [#permalink] 11 Jan 2013, 10:35
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# Analysis of Most Difficult Question Categories/Tags in Forum

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