Hi pepo,
On Test Day, there's one correct answer and four incorrect answers to each Quant question and each Verbal question. The computer does not factor in how you get the correct (or incorrect) answer or how much time it takes you to do so. There IS a penalty for any question that you don't physically answer though.
In the situation that you describe, the scores would be exactly the same.
Since you're asking about all of this, I have to assume that you have some type of 'concern' about your current practice scores.
How have you been scoring on your practice CATs (including the Quant and Verbal Scaled Scores)?
When are you planning to take the GMAT?
What is your goal score?
GMAT assassins aren't born, they're made,
Rich