Friday, May 8, 2009

Freaky Friday (and no, I'm not talking about Lindsey Lohan in her pre-anorexic hayday)

This effing Robin lady is freaking me the HELL OUT! Seriously. Usually I can figure this shit out and it's driving me nuts. There is a catch... Help please!

****** ONLY READ IF YOU WANT TO KNOW THE CATCH... 'cause I'm wicked smart!

I'm think it hasn't something to do with the fact that there are only certain numbers that every two-digit number calculates to (i.e. 9, 3, 81... all squared numbers) and each time you click through, it shows the same gift for every prime number.

1 comment:

  1. A two-digit number ab has the value a*10+b, now you subtract first a then b, so you have
    a*10+b - (a+b)
    = a*10-a + b-b
    = a*9
    In other words the result will always be 9 multiplied by the first digit you chose.
    If you check Robin's matrix, you'll see that they she has the same gift for every multiple of 9