Three men walk into a hotel to rent a room. The desk clerk told them that it will be thirty dollars. So each man paid a ten dollar bill and everyone was happy.
Later the hotel manager came out and the clerk told him that he rented the last room for thirty dollars. The manager told him that he charged too much and the room was only twenty-five dollars and that he should bring five bucks back up to them.
"How can I split five dollars between three men?" he thought to himself. Then decided to bring up five singles. He would give one dollar to each man and he would keep two dollars for a tip.
He did it and everyone was happy.
Now originally how much did each man pay for the room?
Right, ten dollars.
They each got a dollar back so now how much did each man pay/
Right, nine dollars.
9 x 3 = 27
plus the 2 the desk clerk kept makes 29.
Where is the other dollar to make thirty?