180 Days of Ideas for Discussion in Math Class.
(as of 9July2014, we're in overtime!)
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Wednesday, April 29, 2015
448: Hexagon Puzzle
Why did the puzzle creator only ask for circles A and B?
In the diagram, the 19 circles are to contain the integers 1 to 19 once each.
The sum total along any of the lines is 38.
Determine the integers in circles A and B.
Asking for only two
ReplyDelete⒜ is sufficient to determine whether someone "figured it out".
⒝ makes for faster marking on an exam.
There is no deeper rationale.