GMAT total score is a scaled combination of your verbal and quantitative scaled score. These are both scored on a range of 0 to 60.The range for the total GMAT score is 200 to 800. GMAT is different from most other standardized tests because it’s adaptive. That means that questions will get harder or easier based on how well you’re doing.
There are three factors that determine your score for each of those section, and, by extension, your total score: the number of questions you answer correctly, the number of questions you answer, and how difficult the questions you answer are.
The first factor is pretty simple: you get points based on how many questions you answer correctly. The more questions you answer correctly, the more points you get. So, if you answer 25 questions correctly, you’ll get more points than someone who answer 19 questions correctly.
The second factor is also pretty straightforward. You need answer every questions on the test. For the quantitative section, you have to answer 31 questions in 62 minutes. For the verbal, 36 questions in 65 minutes. Answering questions will get you more points than skipping some questions.
The third factor is definitely the most complicated. Every question on the GMAT has an assigned difficulty coefficient. What that specifically means is somewhat complicated and not publicly disclosed by the GMAT, but, basically, a bunch of smart psychometricians use a scientific process to assess how difficult every questions on the GMAT is. This means that the test takers who see more difficult questions get a benefit.
All these factors play into your scores for the verbal and quantitative sections of the GMAT. Your verbal and quantitative scaled score are then used to determine your total GMAT score.