Saturday, 22 February 2014

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.

5 comments:

  1. Replies
    1. This trick was in Think Like a Math Genius.

      Delete
    2. @Cheryl - Ding Wen is your senior in Sec 3 this year :)

      Delete
  2. Let x be the total of the digits input in the page and y be the digit circled.

    The formula for the method is:
    1~8
    2~7
    3~6
    4~5
    5~4
    6~3
    7~2
    8~1
    9~9
    0~9

    Following the formula above, an example:
    Assuming x is 123456

    1+2+3+4+5+6=21
    2+1=3
    So since 3~6, the answer will be 6.

    You can try my method if u want.
    (It might not be explaining in algebra, but I tried my best!)

    ReplyDelete