Directly taken from Mba.com -->
https://www.mba.com/articles-and-announcements/articles/study-for-the-gmat-exam/tactics-and-guessing"Based on an analysis of thousands of actual GMAT records, the question of whether to guess or leave questions blank (at the end) depends on the number of items you have left, the section you are on (Verbal or Quantitative), and your relative ability. Here is how it breaks down:
If you only have 1 or 2 items left in either section, it doesn’t make much difference if you guess or omit the question. You should finish the item you are on to the best of your ability and not worry about the others.
If you are on the Verbal section, it doesn’t make much difference if you guess when you have up to about 5 questions left. You should finish the item you are on to the best of your ability and not worry about the others.
In the Quantitative section, your odds improve if you guess and complete all the questions rather leave the final questions unanswered. After all, there are fewer questions in this section, so each item left blank in this section comprises a higher proportion of the test than in the verbal section. Guess as smartly as you can, but guess nonetheless—do not leave items blank."
I do not understand the suggestion about the
verbal sectionCould please someone explain this?
I can take a guess! It may mean that after 31st question in verbal section, gmat has already decided your score, hence even if you get next 5 wrong, it won't impact your score by much.