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UditVarma777
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Error Log for GMAT Official Guide 2025 - 2026 20 Jun 2025, 07:13
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Can you also streamline time column , im doing 30 question set each, becoming difficult to log time
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UditVarma777
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Error Log for GMAT Official Guide 2025 - 2026 21 Jun 2025, 02:57
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Yes, that's great but how use timer if I'm doing a set of 25 questions , can we have a timer also to understand the time spent on each question
bb
On the positive side, I have labeled all questions that are new to the OG 2025-2026 (

- New! means question new to the OG 2025-2026 but previously used in another source such as an older version of GMAT Prep tests or Official Guide (there are around 100 of these)
- New means question that has never before been seen (a lot fewer of these - around 12 total)
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Error Log for GMAT Official Guide 2025 - 2026 25 Jun 2025, 22:24
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UditVarma777
Can you also streamline time column , im doing 30 question set each, becoming difficult to log time
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Hi. I am not sure I have followed you with the question timing. What would you like to see?

P.S. Quick update, still waiting on the Q/V/DI guides - sorry about the wait :please:
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Error Log for GMAT Official Guide 2025 - 2026 25 Jun 2025, 22:27
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Everything is over.... give just 4 hour time.....


bb
UditVarma777
Can you also streamline time column , im doing 30 question set each, becoming difficult to log time

Hi. I am not sure I have followed you with the question timing. What would you like to see?

P.S. Quick update, still waiting on the Q/V/DI guides - sorry about the wait :please:
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Error Log for GMAT Official Guide 2025 - 2026 26 Jun 2025, 12:22
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Can we have a start-stop watch embedded in the excel, that can used to track the time in the completed time column while we are doing 20 questions set, I'm able to solve hard question was well but struggling with time
bb
UditVarma777
Can you also streamline time column , im doing 30 question set each, becoming difficult to log time

Hi. I am not sure I have followed you with the question timing. What would you like to see?

P.S. Quick update, still waiting on the Q/V/DI guides - sorry about the wait :please:
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Error Log for GMAT Official Guide 2025 - 2026 26 Jun 2025, 12:22
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Time's up, share the links :P
kingbucky
Everything is over.... give just 4 hour time.....


bb
UditVarma777
Can you also streamline time column , im doing 30 question set each, becoming difficult to log time

Hi. I am not sure I have followed you with the question timing. What would you like to see?

P.S. Quick update, still waiting on the Q/V/DI guides - sorry about the wait :please:
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Error Log for GMAT Official Guide 2025 - 2026 26 Jun 2025, 12:25
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UditVarma777
Time's up, share the links :P
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I think he was sending the raw files to me and then I will have to assemble them
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Error Log for GMAT Official Guide 2025 - 2026 23 Jul 2025, 15:20
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UditVarma777
Time's up, share the links :P
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I think he was sending the raw files to me and then I will have to assemble them
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Are the 2025-2026 Q+V+DI Review Guides Error logs already posted? Can't find them anywhere!! :(
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Error Log for GMAT Official Guide 2025 - 2026 Updated on: 31 Jul 2025, 07:36
Originally posted by bb on 31 Jul 2025, 07:35.
Last edited by bb on 31 Jul 2025, 07:36, edited 1 time in total.
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Quant and DI Guides have been posted. I am just going to link them in this topic not create multiple.
Please note that the DI has only the book-based questions (DS and TPA) and we will add G&T and MSR's within a week to it.


Quantitative OG 2025-2026 Error-Log:
https://docs.google.com/spreadsheets/d/ ... sp=sharing


Data Insights OG 2025-2026 Error-Log:
https://docs.google.com/spreadsheets/d/ ... sp=sharing
(MSR, G&T online component will be added by Aug 6)
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Error Log for GMAT Official Guide 2025 - 2026 06 Dec 2025, 09:21
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Hi bb,

Could you please help me understand how can the error log be used for below two please?

  • Help find specific practice questions and build your custom practice tests that focus on your weak areas
  • Use it as a companion with the Official Guide and the question bank online - there is a nice reference to easy find and mark the questions you have attempted using the ID's

bb
Error. Log for the GMAT Official Guide 2025 - 2026


The Official Guide 2025-2026 is a great resource - it has real GMAT questions, all questions are arranged in order of difficulty, good explanations, etc but it has one major flaw - no way to easily locate or specific questions or ability to target a specific area. This Guide attempts to correct that flaw (and a little bit more), making Official Guide even better by providing an automatic logging of questions along with analytics.


Huge thanks to kingbucky, Bunuel, samhitaram22 who who have selflessly gone through every single question and made this guide possible :inlove:
Thank you hr1212 for help with analytics



Main Official Guide 2025-2026 Error-Log:
https://docs.google.com/spreadsheets/d/ ... sp=sharing


Quantitative OG 2025-2026 Error-Log:
https://docs.google.com/spreadsheets/d/ ... sp=sharing


Data Insights OG 2025-2026 Error-Log:
https://docs.google.com/spreadsheets/d/ ... sp=sharing



Verbal OG 2025-2026 Error-Log:
https://docs.google.com/spreadsheets/d/ ... sp=sharing


Excel Version of the Main OG is attached
Attachment:
Error Log for the Official Guide OG 2025-2026 (June 5, 2025).xlsx




Use this guide to:


  • Find Difficulty about every question available in the-Official Guide for GMAT Review
  • Help find specific practice questions and build your custom practice tests that focus on your weak areas
  • Keep your OG Practice in one place with an Error Log and Analytics
  • Use it as a companion with the Official Guide and the question bank online - there is a nice reference to easy find and mark the questions you have attempted using the ID's
  • Understand difficulty of each question (it is not very linear as you will notice). We have split difficulty into 4 groups (easy, medium, hard, and very hard). This split is based on the percentile of the question difficulty as determined by GMAT Club Timer sessions


Some notes about the 2025 - 2026 GMAT Guide:

  • The book has 802 questions. The online question bank has additional questions not found in the book (there are some RC, CR, DS, and PS)
  • MSR and G&T questions are only available online; they are listed at the end as there is no numbering officially for them, only ID's.
  • There is a typo in the Question ID's for DS in the book (they are one off compared to the online question bank)
  • One of the RC questions has changed the answer which was odd or may be a typo but we have updated it on GMAT Club
  • There are very very few truly new questions. Most of the new questions added are older questions from previous version of the GMAT Pre, EA practice questions, and other sources. So while there are over 100 new questions in the book that were not present in the 2024-2025 edition, the actual number of truly new questions is hovering around 11. All of the questions are marked in the spreadsheet.


Errata
(known mistakes and issues)

  • RC Question 563 (102088) answer key says D (page 500) but the correct answer is actually B




PS. If you find any issues with the file, please post here or PM me.
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Error Log for GMAT Official Guide 2025 - 2026 13 Feb 2026, 03:04
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Can you share error log of MSR and G & T
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