Knewton Early Analysis of the OG 12th Edition Math Section

[This topic has 2 expert replies and 10 member replies]
Forum Index GMAT Math Problem Solving
Free $100 Amazon.com Gift Card - Buy a GMAT course using a Beat The GMAT discount code between Mar 8-22 and get a $100 Amazon.com Gift Card. Learn more!
Post New Topic   Post Reply

GMAT/MBA Admissions Expert
See All Featured Experts
Jose Ferreira
GMAT Instructor



Joined: 05 Mar 2009
Posts: 99

Thanks given: 0
Thanked 35 times in 29 posts
Location: NYC

GMAT Score: 800
Topic: Knewton Early Analysis of the OG 12th Edition Math Section
PostSat Mar 14, 2009 12:20 pm
Elapsed Time:
00:00
 Lap   Why a timer is critical to improving your score
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
_________________
Jose Ferreira
Founder and CEO, Knewton, Inc.
http://www.knewton.com/gmat

Last edited by Jose Ferreira on Mon Mar 16, 2009 6:40 pm; edited 2 times in total
Back to top
View user's profile Send private message Visit poster's website
Thanked by: msanthosh2004, aim-wsc
DanaJ
Moderator



Joined: 01 Jan 2009
Posts: 1582

Thanks given: 8
Thanked 272 times in 250 posts

GMAT Score: 770
PostSat Mar 14, 2009 12:28 pm
<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.
Back to top
View user's profile Send private message
maihuna
GMAT Titan

Default Avatar

Joined: 28 Dec 2008
Posts: 1213

Thanks given: 46
Thanked 42 times in 42 posts

GMAT Score: 690
PostSat Mar 14, 2009 12:33 pm
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...
Back to top
View user's profile Send private message
cramya
Moderator

Default Avatar

Joined: 28 Aug 2008
Posts: 2468

Thanks given: 11
Thanked 284 times in 267 posts
PostSat Mar 14, 2009 1:09 pm
Jose,
Kind of u to share the info with the BTG members.


Any insights on the Verbal side(especially CR)??

Thanks!



Regards,
Cramya
Back to top
View user's profile Send private message
maihuna
GMAT Titan

Default Avatar

Joined: 28 Dec 2008
Posts: 1213

Thanks given: 46
Thanked 42 times in 42 posts

GMAT Score: 690
PostSat Mar 14, 2009 2:03 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?
Back to top
View user's profile Send private message
msanthosh2004
Just gettin' started!

Default Avatar

Joined: 04 Mar 2009
Posts: 5

Thanks given: 2
Thanked 0 times in 0 posts

Target GMAT Score: 750
PostWed Mar 18, 2009 2:35 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
Back to top
View user's profile Send private message
cubicle_bound_misfit
Really wants to Beat The GMAT!



Joined: 19 May 2008
Posts: 243

Thanks given: 3
Thanked 7 times in 7 posts
Location: Texaco Gas Station

Test Date: 06/30/2008
Target GMAT Score: 730
PostWed Mar 18, 2009 8:39 am
please let us know if DS has become tougher.
_________________
Cubicle Bound Misfit
Back to top
View user's profile Send private message
logitech
Moderator



Joined: 21 Oct 2008
Posts: 2135

Thanks given: 47
Thanked 175 times in 159 posts

GMAT Score: 730
PostThu Mar 19, 2009 10:29 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

http://www.mba.com/mba/store/ProductInfo?SKU=1612829X
_________________
LGTCH
---------------------
"DON'T LET ANYONE STEAL YOUR DREAM!"
Back to top
View user's profile Send private message
NethraN
Rising GMAT Star

Default Avatar

Joined: 14 Apr 2008
Posts: 35

Thanks given: 4
Thanked 1 times in 1 posts

Test Date: 06-Oct-2008
Target GMAT Score: >
PostFri Mar 20, 2009 10:50 am
Jose Ferreira,
Thanks a lot for sharing this information. It is surely very helpful.
_________________
Nethra
Back to top
View user's profile Send private message
DonDraper
Just gettin' started!

Default Avatar

Joined: 12 Jan 2009
Posts: 18

Thanks given: 0
Thanked 0 times in 0 posts

Test Date: 9/5/2009
GMAT Score: 720
PostFri Mar 27, 2009 8:48 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.
Back to top
View user's profile Send private message
Reply from GMAT/MBA Admissions Expert
See All Featured Experts
Ian Stewart
GMAT Instructor



Joined: 02 Jun 2008
Posts: 1581

Thanks given: 4
Thanked 425 times in 347 posts
Location: Toronto

GMAT Score: 780
PostFri Mar 27, 2009 10:17 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.
_________________
private GMAT tutor
contact me via the tutor directory at www.gmatix.com
Back to top
View user's profile Send private message
DonDraper
Just gettin' started!

Default Avatar

Joined: 12 Jan 2009
Posts: 18

Thanks given: 0
Thanked 0 times in 0 posts

Test Date: 9/5/2009
GMAT Score: 720
PostFri Mar 27, 2009 10:42 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.
Back to top
View user's profile Send private message
Reply from GMAT/MBA Admissions Expert
See All Featured Experts
Ian Stewart
GMAT Instructor



Joined: 02 Jun 2008
Posts: 1581

Thanks given: 4
Thanked 425 times in 347 posts
Location: Toronto

GMAT Score: 780
PostFri Mar 27, 2009 11:03 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.
_________________
private GMAT tutor
contact me via the tutor directory at www.gmatix.com
Back to top
View user's profile Send private message
Display posts from previous:   

Post New Topic   Post Reply All times are GMT - 7 Hours
Page 1 of 1
 
Forum Index GMAT Math Problem Solving
Most Active Members in Last 30 Days
1. harsh.champ 562 posts
2. shashank.ism 368 posts
3. thephoenix 319 posts
4. kstv 310 posts
5. ajith 279 posts
See More Top Beat The GMAT Members
Most Active Experts in Last 30 Days
1. lunarpower
Manhattan GMAT Teacher 		87 posts
2. Stuart Kovinsky
Kaplan GMAT Teacher 		63 posts
3. Lisa Anderson
Stacy Blackman Consulting 		54 posts
4. Testluv
Kaplan GMAT Teacher 		49 posts
5. Bryant@VeritasPrep
Veritas Prep 		41 posts
See More Top Beat The GMAT Experts