Cool. It will never work again with 1759/1758, but will work next year with 1760/1759.
Algebraically, the process (where x is the number of days you pick in #1):
(2x + 5)50 + 1759 - Year/Birth =
100x + 250 + 1759 - Year/Birth =
100x + 2009 - Year/Birth.
So the 100x will always make the first digit the number of days you picked, and since this is 2009, the "2009 - Year/Birth" will always give age.
You could also say to add 8 instead of 5 and then use 1609 instead of 1759 and get the same outcome for the same reasons.
Just me being geeky. :-)
J
Last edited by jmk59; 08-17-2009 at 09:51 PM.
Reason: spelling
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