Riddle! :)

Three men walk into a hotel and ask for a room. The man at the counter says that it costs $30. Each man pays $10 and goes up to the hotel room. Then the man at the counter realizes that he made a mistake; there was a special that day, and the room was only $25. So he gives the bellboy $5 to give back to the men. When the bellboy gets to the room, the men give the bellboy $2 so that each man would receive $1 back, that way it is even.

So each of the three men payed $9 for the hotel room. 9 x 3 = 27. The bellboy has $2. That equals $29. What happened to the last dollar?