If they were to pay equal amounts each out of 25 bucks after deducting the 5 dollars they were over charged, that would still be $ 8.333333333333333 each that they should have paid,witch would be 25 bucks, I don't know but thats the only way I can get it to work out,then they should have received $1.666667 from the bell hop if you divide 5 bucks by 3.Since they received only 1 buck a piece and the bell hop pocketed 2 bucks there should not be a missing dollar. I know you are going to tell me that is not the correct answer,so I give up!