But the hotel only has 1 room left, and all the other hotels in town are booked soild.

The manager says "if you want I can have 2 roll-a-beds put in that last room and you can all stay there"

So the men say ok, how much? and the manager says $30.00 and each man hands the manager a $10 dollar bill.

Later the manager feels a bit guilty. He usually only charges $25 a night for that room, so he hands the bellhop five $1 biils and says "Give this back to the guys in room 212".

So the bellhop is walking to the room trying to figure out how to split 5 dollars up 3 ways. He gets an idea. He gives each man back a dollar and keeps the other 2 dollars for himself.

Ok, if each man paid 10 dollars for the room and each got a dollar back that means it cost them 9 dollars each, right?

3 x $9 = $27.

The bell hop has $2. $27 + $2 = $29.

What happened to the other dollar?