someone from
mgmat told me this:
To score about 700, you need to get about 60% of the questions right. (This is also true for 600. This is also true for 500. Get the picture?
When you get up to about 720 or so, then you need to get more right - maybe 70 to 80%.
So, the percentage correct doesn't change a whole lot, and there's also no absolute minimum number of correct answers - that's just not how the test is scored. What changes is the difficulty level of the questions you're getting right vs. wrong. Also, because of the way the scoring works, strings of wrong answers can be very harmful to your score. A string is 4+ questions wrong in a row. Getting two wrong in a row is not a big deal - in fact, that's going to happen to pretty much everybody.
Basically, this is what you want to do:
- get everything or almost everything right that is "lower level" for you (that is, don't make careless mistake on things you should be able to get right easily)
- do very well on the questions that are in your "top range" (things that you usually, but not always, get right - no more than a couple of careless mistakes on these)
- don't lose time on any questions, especially those that are really too hard for you anyway
- don't put yourself in a position to get 4+ wrong in a row, which basically means don't put yourself in a "rush" position due to time pressure or nerves
so basically i just have to try to get everything right since it is impossible to know which i got wrong (unless i did some serious guessing..)... still interesting to know though