Three men go to a boarding house and pay the owner $10.00 each for a room. 10 +10 +10 = $30<br /> The owner decides that $10.00 each is too much for the room and gives her son $5.00 to give back to the three men.<br /> The son gives each man $1.00 and keeps $2.00 for himself. 1+1+1 +2 = $5.00<br /> This means that each man paid $9.00 for the room. $10.00-$1.00 =$9.00<br /><br />$9.00 +$9.00 +$9.00 =$27.00 and the $2 the kid kept =$29.00<br /><br /> WHERE IS THE MISSING DOLLAR