Ok I need help solving a riddle! 3 people share a hotel room- the room costs $30 they split the bill and pay $10 each to the bell boy he gives the money to the clerk and she says its too much she says it's a $25 room and she told him to give them $5 back he didnt know how to divide $5 evenly between 3 people so he kept $2 for himself and gave each one a dollar back. NOW- how much did they pay for the room? I think $27 (10-1=9x3) Then you add the $2 the bell boy took and you get $29 Where is the other dollar?
This same "trick" or riddle can be seen very easily in another form - Hold up both hands with fingers extended. Starting with your left hand and thumb count down 10 9 8 7 6 .... plus five on the other hand make 11 fingers uzzled: