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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 ## Knewton Early Analysis of the OG 12th Edition Math Section ##### This topic has expert replies GMAT Instructor Posts: 99 Joined: 05 Mar 2009 Location: NYC Thanked: 43 times Followed by:9 members GMAT Score:800 ### Knewton Early Analysis of the OG 12th Edition Math Section by Jose Ferreira » Sat Mar 14, 2009 11:20 am ## Timer 00:00 ## Your Answer A B C D E ## Global Stats Hey everyone, Knewton has received an early shipment of the 12th Edition of the GMAT Review (The Official Guide), so we wanted to share with you some early details about what you can find in the new book. More to come! (Update: Verbal Analysis here!) Here is a first look at the number of new and repeated questions in the Math section of the OG: TOTAL (MATH): 11th Edition: 404 questions 12th Edition: 404 questions New questions in 12th Edition: 146 (36%) Repeated questions in 12th Edition: 258 (64%) PROBLEM SOLVING: 11th Edition: 249 questions 12th Edition: 230 questions New questions in 12th Edition: 52 (23%) Repeated questions in 12th Edition: 178 (77%) Questions deleted from 11th Edition: 71 (29%) DATA SUFFICIENCY: 11th Edition: 155 questions 12th Edition: 174 questions! New questions in 12th Edition: 94 (54%) Repeated questions in 12th Edition: 80 (46%) Questions deleted from 11th Edition: 75 (48%) As you can see, the total number of questions has not changed, but there are now 19 fewer Problem Solving questions and 19 more Data Sufficiency questions. We think this is great, since, in our experience, most students have more trouble with the DS section. There are also many more new DS questions (94) than there are PS questions (52). Here is a complete list of the new questions in each section (question numbers in the 12th Edition). Stay tuned for our analysis of the Verbal Section, coming soon. Let us know if you have specific questions we can look into! Problem Solving =============== 2, 5, 13, 18, 23, 24, 27, 28, 40, 42, 43, 45, 48, 50, 54, 58, 59, 60, 65, 66, 68, 69, 73, 74, 81, 82, 83, 89, 90, 91, 92, 99, 105, 106, 107, 108, 109, 110, 117, 119, 124, 142, 143, 146, 148, 157, 159, 163, 164, 171, 197, 230 Data Sufficiency =============== 4, 7, 8, 9, 13, 14, 17, 18, 19, 21, 22, 24, 25, 26, 27, 28, 31, 32, 33, 36, 37, 38, 39, 42, 44, 45, 46, 48, 49, 52, 53, 54, 55, 57, 58, 59, 62, 63, 66, 66, 67, 68, 69, 70, 75, 76, 77, 78, 79, 80, 81, 82, 87, 88, 89, 90, 93, 94, 97, 98, 99, 100, 101, 104, 105, 106, 109, 110, 111, 112, 115, 116, 117, 120, 121, 122, 123, 124, 128, 129, 132, 133, 134, 137, 141, 142, 147, 148, 151, 152, 157, 161, 162, 167, 168 Last edited by Jose Ferreira on Mon Mar 16, 2009 5:40 pm, edited 2 times in total. Jose Ferreira Founder and CEO, Knewton, Inc. https://www.knewton.com/gmat Site Admin Posts: 2567 Joined: 01 Jan 2009 Thanked: 712 times Followed by:550 members GMAT Score:770 by DanaJ » Sat Mar 14, 2009 11:28 am <sigh> My question about this (and I believe it's a fundamental question) is: are the problems different in content or only in numbers? I believe that this is really important, since if you change the numbers of a problem, but still test the same type of issue, there isn't much of a difference. However, if the type of problems is different (i.e. testing different concepts), then there might be some issues. Legendary Member Posts: 1578 Joined: 28 Dec 2008 Thanked: 82 times Followed by:9 members GMAT Score:720 by maihuna » Sat Mar 14, 2009 11:33 am Yep thats a good question, we need to see it that way...btw, thanks newton ceo for quick updates...u guys/gals are much ahead in race with others... Legendary Member Posts: 2467 Joined: 28 Aug 2008 Thanked: 331 times Followed by:11 members by cramya » Sat Mar 14, 2009 12:09 pm Jose, Kind of u to share the info with the BTG members. Any insights on the Verbal side(especially CR)?? Thanks! Regards, Cramya Legendary Member Posts: 1578 Joined: 28 Dec 2008 Thanked: 82 times Followed by:9 members GMAT Score:720 by maihuna » Sat Mar 14, 2009 1:03 pm Hi Jose, I have one question, do you see any paper based questions in new set of questions? How many questions are in hard bins for each section? Newbie | Next Rank: 10 Posts Posts: 5 Joined: 04 Mar 2009 by msanthosh2004 » Wed Mar 18, 2009 1:35 am Hi, Any idea whether these questions are from Official GMAT Math review book. If these extra questions from math review then its not sensible for people who have math review book to buy this. Any idea abt that ? Cheers, San Regards, Santhosh Master | Next Rank: 500 Posts Posts: 246 Joined: 19 May 2008 Location: Texaco Gas Station Thanked: 7 times by cubicle_bound_misfit » Wed Mar 18, 2009 7:39 am please let us know if DS has become tougher. Cubicle Bound Misfit Legendary Member Posts: 2134 Joined: 20 Oct 2008 Thanked: 237 times Followed by:25 members GMAT Score:730 by logitech » Thu Mar 19, 2009 9:29 am I would recommend everybody to purchase the GMAT FOCUS tests on www.mba.com This alone will be the best investment you can make to get the feeling of "current" DS and PS question levels and find out what your scoring range is.. GMAT Focus™ Online Quantitative Diagnostic Tool - Bundle of 3 US$65.00

https://www.mba.com/mba/store/ProductInfo?SKU=1612829X
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by NethraN » Fri Mar 20, 2009 9:50 am
Jose Ferreira,
Thanks a lot for sharing this information. It is surely very helpful.
Nethra

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by DonDraper » Fri Mar 27, 2009 7:48 am
This exercise is silly. This is like studying a ten-year-old map to figure out how to get around a new city. The whole reason GMAC is willing to share these questions is because they're retired.

I think that anyone who takes this exercise seriously is fooling themselves.

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by Ian Stewart » Fri Mar 27, 2009 9:17 am
DonDraper wrote:This exercise is silly. This is like studying a ten-year-old map to figure out how to get around a new city. The whole reason GMAC is willing to share these questions is because they're retired.

I think that anyone who takes this exercise seriously is fooling themselves.
If you take a real GMAT, you'll appreciate that the available retired questions are the most similar available to what you see on the real test. I'll agree with you that one 'reason GMAC is willing to share these questions is because they're retired' - they certainly would not be willing to share questions which are still in the current live question pool, and understandably so. Still, there are many conceptual commonalities among retired and live questions, and if you can understand how to solve every available retired question, you're virtually certain to do well on test day.
If you are looking for online GMAT math tutoring, or if you are interested in buying my advanced Quant books and problem sets, please contact me at ianstewartgmat at gmail.com

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by DonDraper » Fri Mar 27, 2009 9:42 am
Ian, I agree with all of what you said. My argument is that trying to divine where the test is going, because the OG has 19 more data sufficiency questions than before, is kind of pointless.

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by Ian Stewart » Fri Mar 27, 2009 10:03 am
DonDraper wrote:Ian, I agree with all of what you said. My argument is that trying to divine where the test is going, because the OG has 19 more data sufficiency questions than before, is kind of pointless.
I see what you mean - I misunderstood your original point. I agree - the best way to determine where the real GMAT is going is by looking at real GMAT tests. It is the case that the proportion of Quant questions which are DS has risen over the past few years, however, and it is perhaps not coincidental that this shift is reflected in the new balance of question types in the 12th edition of the OG. I'd be less confident drawing conclusions about topic balance from small shifts in distribution of topics in the new OG - perhaps that's meaningful, perhaps not.
If you are looking for online GMAT math tutoring, or if you are interested in buying my advanced Quant books and problem sets, please contact me at ianstewartgmat at gmail.com

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by hephzi_bah » Fri May 07, 2010 1:02 pm
Well, under my humble opinion the 12th edition is the very worst ever edition. I teach for the GMAT since 1994 and I have all editions form OG and all the possible "old" booklets since it was paper base test. 12th edition not pass the test by other OG editions....

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by kevincanspain » Fri May 07, 2010 1:54 pm
hephzi_bah wrote:Well, under my humble opinion the 12th edition is the very worst ever edition. I teach for the GMAT since 1994 and I have all editions form OG and all the possible "old" booklets since it was paper base test. 12th edition not pass the test by other OG editions....

Sincerely
Alberto Vidal
What do you find disappointing about the 12th Edition? How doesn't it measure up to the 11th?
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