Despite what most people say, the GMAT is a relativeky staright forward test. The Maths is basic A-Level standard. Anyone who did A-Level's and passed will be fine. The GMAT is a computer adaptive test, and the questions you get are determined by whether you get a question right or wrong. Get a question right and you'll get a harder question. Get one wrong, then you get an easier question and so on. By the end the test will have found what is your 'level' and then plot your level against the wider population. It is this ranking that determines your score, not how many you get right.A score of 700, which is typically viewed as the benchmark nowadays to get into a top b-school, would mean that you'd be in the top 5% of the GMAT population. Although, GMAT scores aren't everything, since there were a few people in my course who scored in the low 600's, but they had amazing background and work experiences. Also, every year, you hear stories of people who scored a perfect 800, and not even getting an interview with some top schools. So GMAT scores aren't everything!I can't really say whether you're score of 20 out of 34, is good or not. Chances are that it was an ok score that would have given you a score of high 500's or low 600s. Given that this was the first time ever you had done a paper, it's pretty good. Once you've had a chance to learn the ins and outs, the types of questions and associated techniques, your score should go up quite considerabaly. Also if Maths is the section you are most concerned about, don't worry, since out of the two it is by far the easiest to rectify, since as I said, it's no more than basic A-Level's and a quick refresher is probably all you need.I suggest that you refer to the GMAT bible, which is KAPLAN. If you think, you need, you can attend some tutoring by KAPLAN. I believe they run a centre in London.Above all, practice. I started off with an abysmal score of low 500s and with some pratice. A couple of hours a night in the fortnight leading up to it, I managed to get a 720. Oh, the section on the essays. Don't spend too much time on them. Since the testing is very subjective and the B-Schools don't take any notice of these scores, unless it's less than a 3. As long as you can write in sentences, and your essay is probably punctuated, then you'll get at least a 2.Best of Luck!
