View Full Version : this is interesting
09-18-2003, 10:15 AM
Okay, mathematical genius, figure this one out. After clicking on the
> link below and getting a page, then always click on the little guy on
> the right bottom corner to go to the next page for the next
> this is amazing!..
> web page (http://digicc.com/fido/)
Sharp Eye Washington
09-18-2003, 10:31 AM
Very interesting (in the voice of the old Laugh In character)
D J 1 3 8
09-18-2003, 10:41 AM
Basically, it's a formula.
Pick a number X
When you transpose the digits of X (turning 1234 into 1324) and take the differnce you will have a number divisible by nine
Numbers that are divisible by nine have a unique property. That property is: the sum of their digits is also divisible by nine (for instance 123453 is divisible by nine because 1+2+3+4+5+3=18)
The guy asks you for the numbers you didn't circle.
So basically the equation works like this.
known+known+known+unknown=something divisible by nine
( BTW, I did not figure this out on my own. Some math nerd explained it to me on another board. I failed math more times than I can count.)
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