Sorry ? probably daft questions. 
OK, so if we decide to appeal and actually manage to win and get a reception place my DC goes into a class of 31.
But am I correct in understanding that once they are there if that class remains stable and goes into Year 1 as 31 the school has to employ another teacher?
How do schools with tight budgets manage that, as I understand they get a fixed amount per child?
It would be great as it would take the class sizes down to 15/16, but how does that work if the school is full and there are no spare rooms? Two classes with two teachers in the same room? A portable cabin?
Then if the classes are 15/16 does it open the door to other parents appealing in Y1 and moving their children in to the classes and it goes up to a maximum of 60 in the year group not 30?
What happens if midway through year 1 a child leaves, does the school ?sack? the additional teacher at the next viable opportunity to save money?