Three men walk into a hotel. The clerk tells them that the room will cost $30. Each man puts $10 on the desk and the clerk hands them a key. After the men go up to their room, the clerk realized that the room should have only been $25. He hands the bellboy five $1 bills and instructs him to explain the situation to the men and give them their change. On the way up, he realizes that he can't split 5 evenly 3 ways, so he pockets two dollars and gives each man a dollar back and tells the men that the room only cost $9.
So if the men ended up paying $9 each for the room and the bell boy pocketed $2, then what happened to the other dollar?
$10 x 3 = 30 $1 back to each man w/bellboy pocketing $2 $9 x 3 = $27 + $2 = $29