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Path: utzoo!watmath!sunybcs!ugfailau
From: ugfailau@sunybcs.UUCP (Fai Lau)
Newsgroups: net.puzzle
Subject: Re: Mixing Liquids (SPOILER!!)
Message-ID: <2955@sunybcs.UUCP>
Date: Wed, 19-Mar-86 08:31:54 EST
Article-I.D.: sunybcs.2955
Posted: Wed Mar 19 08:31:54 1986
Date-Received: Fri, 21-Mar-86 03:40:07 EST
References: <1907@trwrba.UUCP> <184@winston.UUCP>
Organization: SUNY/Buffalo Computer Science
Lines: 32

> 
> Here is an interesting puzzle, which I must confess I already know the
> answer to, but would like to know the ELEGANT solution.  I will post a
> summary if there is sufficient response.
> 
> Puzzle:
> 
>     Take a half a cup of tea, and a half a cup of coffee.
>     Take one tablespoon of the tea and mix it in with the coffee.
>     Take one tablespoon of the mixture and mix it back in with the tea.
> 
>     The question is, which of the two cups (if either) contains more of 
>     its original contents, and WHY.
> 
> Remember, I'm looking for simple, elegant solutions here....
> 
	The answer is neither one. Since the resulted volumns of both
liquids haven't changed, and they are equal to begin with, whatever
amount of original liquid one container loses must be replaced by
the same amount of liquid which are originally found in the other
container. So it follows that the other container loses the exact same
amount of its original liquid. And the solution goes that the two
containers eventually not only have the same amount of their original
liquids, but the same amount of foreign liquids as well.



+-----------------------------------------------------------------------------+
|  Fai  Lau                                                                   |
|  ECE / CS  SUNYAB                                                           |
|  BI: ugfailau@sunybcs                                                       |
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