students are going through a three step sequential process to obtain their id cards. each student will first spend on average $2$ minutes at one registration desk. then the student will go to one of two cashiers to pay a fee for the card. each cashier spends $6$ minutes on a student on average. after that, the student will visit one if five if processing stations to have his$/$her picture taken and the id card printed. each id processing station has a capacity of $5$ students$/$hour$.$ the process capacity $=\_\_$ students$/$hour