英语翻译Mr Knight had a hotel in a small town.One Friday evening

英语翻译
Mr Knight had a hotel in a small town.One Friday evening there men came to his hotel to ask for rooms for a night Mr Knight told them that his hotel was full and the three men felt unhappy because they had no place to stay in for night Mr Knight then said I really want to help you But can you there men stay for the night in just room?I only have a small room free
"That'll do," thethere men answered
Mr Knight told then that he want to ask for for each
Mr Knight told then that he want to ask for $30，$10 for each，Each ,Each gave him $10 and they went up to Room 518.
Soom Mr Knight felt sorry :"Thirty dollars is too much for that small room ," he thought .So he called his assistant over and said ,"here is$5.Give it back to the men in Room 518.i asked them for too much money for that room"
the assistant took the money.On his way to the room he began to think,"$5 for there men?I'll give them $1 each and keep $2 for myself.the men will be pleased to get something back .I'll have the money and Mr Knight won't know!"So the assistant did.
here is problem:the there men gave $30 and got $3 back .the assistant got $2.But $27 and $2 is $29 three must be another dollar,but where is it.

Knight 先生在小镇上有一个旅馆.一个星期五晚上,3个男人到他旅馆住宿.Knight 先生告诉他们旅馆已经客满.3个男人很沮丧,因为他们没有地方过夜.Knight 先生说我很想帮助你们,但是我只有一个小房间,如果你们愿意的话,就凑合着吧.
“行”这3个男人说.
Knight 先生告诉他们这个房间收费30美元,即每人10美元.因此3个男人各给了他10美元后就去518号房间.
很快,Knight 先生就感到很内疚,他觉得这个房间不值30美元.他把助理叫上来说：这里有5美元,你把它退回给518号房的3个客人吧.我让他们多付了钱.
助理把钱拿在手上,在去518号房的路上,他开始想“把5美元分给那三个人?我还是每个人给1美元,2美元留给自己吧.他们拿回1美元已经很高兴了,我把钱拿走,Knight 先生也不知道”.助理也这样做了.
于是就出现了这样的问题：3个男人给了30美元,拿回了3美元,助理拿了2美元.27美元+2美元等于29美元,还有1美元在哪?