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

date posted 20th January 2003 14:06

Andrew Hancock wrote:
> 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 :)

And you were /so/ close :-(

Em

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