I think the shorthand answer to this is "no," though I can't say for sure. Though I would imagine that if you scored a 10, 9, 9 and then a 9, 10, 9, and then a 9, 9, 10, they would assume your actual score would be somewhere between a 9-10 in each section. However, if you're scoring 10, 7, 7 in all the various permutations, I wouldn't expect them to look at it and call it a 30. I doubt, though, that anyone's scores are distributed in such a fashion.
That being said, there must be a reason why you are asking this question. Have you taken the MCAT multiple times, and are your scores distributed that way?
my understanding is that they will look at all scores but focus more on your highest score overall, not combine the individual sections. But they do view all of your scores and probably take that into consideration.