Saturday, 21 February 2015

6 AM Quiz: Let's Test FIDO out!

In this round of 6 am quiz, you will attempt to uncover the mystery behind Fido's Mind-Reading ability.

Fido claims that he can read our mind.
Click at the following link to test him out!!! :
http://www.digicc.com/fido/

There are several ways to explain Fido's trick, using mathematical reasoning. 
Make an attempt to use ALGEBRA to explain the "trick"?

Enter your thinking (algorithm) in Comments.
up to 10 points to be awarded to the most complete answer that's explained in a simple to understand way

1 comment:

  1. What I think:
    There are only 9 digits since he said don't pick 0. I believe that all 3 and 4 digit numbers when their digits are jumbled up and subtracted, their answers are always different, so it is possible to guess the number missing using the other 3/2/1 number(s).
    I tried putting 123 as the number and changed the way the numbers were placed, and each time i got 3. This means that the number given is not random, and is based on the input. That also means that no matter what, as long as 1, 2, and 3 together is the input, 3 is the answer.
    1, 2, 3, and 3 can make many answers for even more starting numbers.
    (I am not sure if this counts as algebra, this is just how I would explain)

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