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riddles >> medium >> Re: Item quiz
(Message started by: Grimbal on Mar 1st, 2016, 1:21pm)

Title: Re: Item quiz
Post by Grimbal on Mar 1st, 2016, 1:21pm
https://www.dropbox.com/s/sa2abzdy0j4fess/File+23-02-16,+23+17+03.jpeg

7.  I mean: A.

My first idea was that with 3 equations and 4 variables, you could easily fit the center value as a linear combination of any 3 corners.  You could even make fit all 4 equations with any value at the question mark.  I discarded the idea as, too easy.
And yet...

[hideb]
1x8+2x3+3x7+4x1 = 39
1x2+2x6+3x4+4x5 = 46
1x9+2x6+3x1+4x2 = 32
1x4+2x3+3x7+4x3 = 43
[/hideb]




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