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Forum URL: http://www.cut-the-knot.org/cgi-bin/dcforum/forumctk.cgi
Forum Name: Middle school
Topic ID: 10
#0, Star of David brain teaser
Posted by Donna Scarborough on Oct-21-00 at 12:09 PM
Draw a star of David. At each intersection or angle, draw a circle. In each circle belongs a number. There will be twelve circles and you must use the numbers 1,2,3...12 in each circle only once. Each sequence of four numbers must add up to the same number. I have been trying to figure this one out for awhile. Can you help me? Many thanks. Donna

#1, RE: Star of David brain teaser
Posted by alexb on Oct-21-00 at 12:11 PM
In response to message #0

10
4 7 9 6
8 5
1 11 12 2
3