Hello!
It depends on the institution and it would be great if you could let us know the college you're talking about so we could help more. Normally, a 100 seats are kept for a tuition fee waiver (not full) but it can vary from institute to institute and would differ.
Comment below in case of further queries! Good luck!
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile