College Dorm

On the first day of college, the Dean addressed the students,
pointing out some of the rules: "The female dormitory will be
out-of-bounds for all male students, and the male dormitory to
the female students. Anybody caught breaking this rule will be

fined $20 the first time." He continued, "Anybody caught breaking this rule the second time will be fined $60. Being caught a third time will cost you a fine of $180. Are there any questions?"
At this point, a male student in the crowd inquired:
"How much for a season pass?"