Three Matoran walk into the village hotel looking for a room.

The receptionist tells them that there is only one room available, and that it costs 30 Widgets to rent.

So the three Matoran each pay 10 Widgets, and head to the room to rest for the night.

Later, the receptionist realizes that she over charged them by 5 Widgets, so she gives the money to the bellhop instructing him to return it to the 3 Matoran.

The bellhop, on his way to the room, realizes that there is no way to split the 5 Widgets 3 ways.

So he puts 2 Widgets into his pocket and doesn't tell the Matoran about it, also taking into consideration the fact that they didn't tip him.

Now, here's is the question about this puzzle.

After getting their money back, each of the Matoran has spent 9 Widgets, totaling 27 Widgets spent for the room.

The bellhop took 2 Widgets for himself, which brings the total to 29 Widgets.

What happened to the last Widget?