[GeoStL] Re: NGR: Too Weird

The number you get from subtracting the sum of the digits of a two-digit number 
from itself will always be divisible by 9.
In effect you are doing this:
10x + y - y - x = 9x.
The 'answer' symbol is always next to every number that is divisible by 9.  It 
looks like it is giving you different answers each time because it sneakily 
changes the symbol next to every multiple-of-9-number :) each time you load the 
page.

What did I win? :)
  ----- Original Message ----- 
  From: Mike Griffin 
  To: geocaching@xxxxxxxxxxxxx 
  Sent: Thursday, February 27, 2003 11:19 PM
  Subject: [GeoStL] NGR: Too Weird


  OK, I will give a dollar to the first person that can figure out how this 
works...

  http://mr-31238.mr.valuehost.co.uk/assets/Flash/psychic.swf


  Mike 

  "Insert useless tagline here"

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