HELP PLEASE....What do these score results mean?

[GMAT?]

I've just taken the pratice questions on the GMATPrep download.

Here are may results:

Quantitative:

1. Problem solving: 10/15
2. Data Sufficiency: 9/15

Total quantitative score = 19 / 30 = 63 %

Verbal:
1. Reading comprehension: 10/15
2. Sentence correction: 12/15
3. Critical reasoning: 11/15

Total verbal score = 33/45 = 73 %

Does anyone know how this would equate to in terms of a rough GMAT score?

I'm a medical doctor and I've got the GMAT in 4 weeks time. This is the first time I've actually done questions? How is it for a 1st go? I need to get >680 or so as applying to top MBA programs.

Thanks a lot for your help.

[wildrebel]

GMAT?

The Practice Questions (as far as I know) are not computer adaptive. This means getting a question wrong will NOT get you an easier question and vice versa. You need practice on a Computer Adaptive Test (CAT).

Since you already have the GMATPrep software, why not just take a full length test? It's a CAT and is a pretty good indicator.

Nobody's estimate will be as accurate as the actual GMATPrep Tests, especially since you only did the Practice Questions.

All the best!
Nandan