1. Use the Search Box Before Posting.

- We have 30,000 questions discussed. Chances are the one you wanted to post is already there.
- Forum Search



2. Choose the Right Forum.

- Please post PS questions in the PS subforum and DS questions in the DS subforum. No posting of PS/DS questions is allowed in the main Math forum.



3. Give a Topic Name (IMPORTANT).

- Use the first sentence of the question or a string of words exactly as they show up in the question. You get 40 characters. Use them all to help with the search & similar topics feature!



4. Post Only one Question per Topic.

- Please do not post multiple questions in the same post as it makes timer, search, tags, and other functions irrelevant.



5. Do not Change the Question.

- It is extremely important that the integrity of the original question is maintained. Remember, every word that is included in a question is there for a reason!



6. TYPE the Question and solution in as Text.

- Do not post pictures of questions or solutions. The only time a picture is acceptable is when a question has a diagram. If a diagram exists, make sure to always attach it using JPG/GIF/PNG formats. Do not use Word or PDF documents.



7. Indicate the OA (Official Answer)

- Use the A, B, C, D, E radio buttons and make sure you post the answer choices.



8. Post Answer Choices for PS Questions

- On the PS section one should always look at the answer choices before starts to solve a problem. They might often give a clue on how to approach the question.



9. Use Formulas that Look Like Formulas!

- Help us to help you. It is quite easy, and will increase the value of your questions. (See directions here: http://gmatclub.com/forum/11-rules-for- ... l#p1096628 or the discussion here: http://gmatclub.com/forum/writing-mathe ... 72468.html)



10. Tag Your Questions.

- At least 3 tags are required: difficulty level (in your opinion), question category, and source of the question. You are welcome to use more tags as applicable. You can also TAG other people’s posts to make them more valuable. You can see the positive results of using tags here: Data Sufficiency, Problem Solving, Critical Reasoning, Reading Comprehension, Sentence Correction. Also check our entire Question Bank by Tags.



11. Avoid Short/Useless Posts (they will be deleted) and use the Kudos Button Instead.

- If you choose to answer a question, please answer only if your post adds value. Saying “+1 A”, "Awesome solution!" or “Great Question!” does not. Pressing the Kudos button does.



12. ONLY Questions from Reliable GMAT Sources are Allowed on the Forum!

- Please do NOT post questions from random math books and web sites. Please do not post your self-made questions in PS/DS forums, use this topic instead: Users' Self-Made Questions Non-GMAT questions will be deleted without a notice.



13. Please do NOT ask for a kudos in your posts.


- If a post deserves a kudos it will eventually get it. Please do not ask people to give Kudos to your posts in public or private.

Also check How to Write Mathematical Formulas on the Forum

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