Re: FN-FORUM MENSA Question (just 4 fun!)

date posted 20th January 2003 14:20

Andrew

You can't solve it that way, because you have three variables and only two
statements. This means that the answer will always be in terms of the
unsolved variable. Nor can you eliminate the y's because they represent
different things.

John

----- Original Message -----
From: "Andrew Hancock" [EMAIL REMOVED]
To: [EMAIL REMOVED]
Sent: Monday, January 20, 2003 1:55 PM
Subject: Re: FN-FORUM MENSA Question (just 4 fun!)


> I started the calculations.....
> x+y+z=100
> 10x+y+0.125z=100
>
> x+y+z=10x+y+.125z
>
> Y cancels
>
> x+z=10x+0.125z
>
> z=9x+z/8
> 7z/8=9x
>
> 7z/72=x
>
> y+79z/72=79z/72+y ... works
>
> y+79z/72=100
> 72y+79z=7200
>
> 72y=7200-79z
>
> y=200-79/72z
>
> 7z/72+200-79/72z+72z/72=100
> 7z-79z+72z=-7200
>
> z=0 ... arse.
>
> ...Then decided to give up and get on with the urgent bugfix I had to do
:)
>
> Andy.
> --
> Andy Hancock - [EMAIL REMOVED]
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