How can you properly devide the hotel charges?

Problem:

Three people check into a hotel. They pay $30 to the manager, and go to their room. The manager finds out that the room rate is $25 and gives $5 to the bellboy to return. On the way to the room the bellboy reasons that $5 would be difficult to share among three people so he pockets $2 and gives $1 to each person. Now each person paid $10 and got back $1. So they paid $9 each, totaling $27. The bellboy has $2, totaling $29. Where is the remaining dollar ?

 

Solution: 

True its just a slip of tongue. 3 rooms money paid = $27 = Manager $25 + bellboy $2. Plus $1 to each of them.