Test your maths skills

Three men went to a motel. The man behind the desk said the room is $30, so each man put up $10 each and went to the room.

A little while later he realized the room was only $25, so he sent the bellhop back to the 3 guys' room with $5.

On the way to the room the bellhop couldn't figure how to split the $5 between the 3 guys so he just gave each one of them $1 and he kept the other $2.

That left the 3 guys paying $9 each for the room. 3x9=27+ the 2 that the bellhop kept =$29.

WHERE'S THE OTHER DOLLAR?