Regifting Robin

Silver Member Joined: Apr 10 2008 Posts: 861

http://www.regiftable.com/RegiftingRobinPopUp.html

I would love to know how this works - If any of you can enlighten me...please do so.

Silver Member Joined: Apr 26 2010 Posts: 982 Location: NJ

figured it out & how to beat it. It follows your mouse. Most people will use their mouse to find the #. If you use your eyes & put your mouse on a diff #, it will guess wrong. Hooray

Gold Member Joined: Jul 30 2009 Posts: 1688

It's a math trick.

No matter what two digit number you pick, subtracting each of the digits will always equal a multiple of 9.

Ex.
84 >> 84 - 8 - 4 = 72
15 >> 15 - 1 - 5 = 9
91 >> 91 - 9 - 1 = 81

Etc.

In each screen of possible gifts, ALL GIFTS WITH NUMBERS DIVISIBLE BY 9 ARE THE SAME.
Their order makes it not very obvious, but check, and you'll see.

Each time, she changes which gift corresponds to the divisible-by-9 numbers, so that throws you off, but it's a pretty simple trick.

Posted: Thu, Feb 03 2011, 10:12 pm Post subject: re: Regifting Robin

Your answer always has to be a multiple of 9. Each time the chart has a different gift in the 9's time table, and that's gonna be the answer. So it looks different each time, but it really isn't.

Silver Member Joined: Apr 26 2010 Posts: 982 Location: NJ

Silver Member Joined: Apr 10 2008 Posts: 861

Gosh - I feel slow..how did you all know that?

Posted: Thu, Feb 03 2011, 10:48 pm Post subject: re: Regifting Robin

I dont know abt the multiple of 9 I guess that the one way but its the mouse also cuz my mouse I didnt move and it was over a number (not the one I had) and it said that one!
its cute though