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 | | From: | E.R. | | Subject: | Odd One Out - Number Grids | | Date: | Fri, 21 Jan 2005 15:07:25 GMT |
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 | Difficulty: *****
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The following are three number grids whose rows, columns and
diagonals sum to the totals shown in the outer green squares (in
the directions indicated by the arrows). One of the numbers in
each grid has already been filled in. The pink squares (and only
the pink squares) contain prime numbers.
Which grid is the odd one out: A, B or C, and why? There are two
valid and different solutions: one "serious" solution and one
"humorous" solution. Can you identify both?
See
http://ca.f2.pg.briefcase.yahoo.com/bc/sovietjamaicanguy/lst?.dir=/Pub&.order=&.view=l&.src=bc&.done=http%3a//ca.f2.pg.briefcase.yahoo.com/
and click on the file "numbersquares" to view the number grids.
[hint spoiler space]
[/hint spoiler space]
HINTS:
- There are three numbers common to all three grids, one of
which is 9.
- After completing the number grids correctly, there is a second
stage. The explanation for both solutions is a non-mathematical
one.
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E.R. aka SJG aka Ricardo
present location: vancouver bc canada
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