gmatplayer wrote:One benefit of getting as many as correct in first 10 is you do get high level (700+) questions in later part (lets say next 10). And another thing is even if you do get many of 11-20 wrong, your score would not lower as much because penalty of getting wrong in high level questions is lot less than lower level questions.
This is only patially true because even if you got the first 10 correct your score will fall
extremely fast if you then get questions 11, 12, 13, & 14 wrong. I'd say if with the first 10 correct the computer is giving you a 48 in Q. And then you get the next 5 wrong, you probably drop to a 44. So to get back to 48 you'll need probably 6 in a row correct. Now you are at question 21. If you then get another 4 incorrect, your score drops again. And to get back to 48 you'll need another string of correct answers. But now you are quickly running out of questions and you're running out of time. You'll need even MORE questions if you are getting long strings of questions wrong e.g. 3 in a row, but only getting 2 in a row correct.
My basic point is this: getting the first 10 correct is great! But it is NOT as important as avoiding strings of incorrect answers. The GMAT is VERY harsh with srting of incorrect questions. And you are likely to get strings of incorrect answers if you spend too much time on the first 10 and then have to rush later on through what will be high level questions (seeing as you got the first 10 correct). And in my opinion, the worst time to get strings of questions wrong is towards the end of the test (after question 26) because you'll have no more questions to build up your score. Not to mention, you'll be running out of time which will iuncrease the pressure on you making you even more likely to get strings of questions wrong.
So the takeaway should be don't focus on the first 10 to the detriment of the rest of the test.
With regards to the level of difficulty of the questions: The GMAT is sort of counterintuitive because it doesn't punish getting difficult questions wrong but it punishes getting easy questions wrong. Think about it. In a regular test a difficult question will be awarded more points and getting it correct will earn you more points whereas getting it wrong will lose you more points. On the other hand easy questions are awarded fewer points and getting them correct/wrong witll earn/lose you fewer points. However, on the GMAT if you get a 51 Quant level question wrong, well then you are scoring 50 in Quant - hardly a punishment. But if you get a level 39 quant question wrong then it is a loooong way to get to getting a 50 in quant because you will NEVER se a level 50 Q question without first getting level 40, 41... 49 correct. So for this reason your focus should not be so much on getting super-hard questions correct as much as it should be on NOT getting easy questioons wrong.