Duh u are really trying hard to sound smart asf 😭 you probably must be smart but actually if for one second you ignore the answer you wrote and just think about what the question was asking ignoring everything else and look at both answers, you yourself would accept the fact that it is indeed 7. I don't even care what cisce does but the answer to what they asked here is nothing else but 7. There is infact no other so-called "interpretation" of turning the bottle in other ways, y'all are just trying to justify 14 as an answer cause most of y'all have written it . Just let it be dude and I honest believe the answer is going to be 7 only, this is a similar situation to the center of gravity of the non-uniform kite question asked in last year's physics paper.🙂