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Establish if there exists a finite set M of points in space, not all situated in the same plane, so that for any straight line d which contains at least two points from M there exists another straight line d', parallel with d, but distinct from d, which also contains at least two points from M.

Slični zadaci

#NaslovOznakeRj.KvalitetaTežina
1977IMO Shortlist 1997 problem 210
1761IMO Shortlist 1989 problem 231
1711IMO Shortlist 1988 problem 41
1700IMO Shortlist 1987 problem 163
1672IMO Shortlist 1986 problem 90
1142IMO Shortlist 1959 problem 221