International Competitions 1990

#CompetitionYearsProblemsYears
1International Mathematical Olympiad1959–2025398
2Middle European Mathematical Olympiad2009–2025160
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ProblemSourceTags
International Mathematical Olympiad 1990 Problem 1International Mathematical Olympiad 1990CircleGeometryTangent
International Mathematical Olympiad 1990 Problem 2International Mathematical Olympiad 1990CircleColoringCombinatoricsOptimization
International Mathematical Olympiad 1990 Problem 3International Mathematical Olympiad 1990DivisibilityNTPowers
International Mathematical Olympiad 1990 Problem 4International Mathematical Olympiad 1990AlgebraFunctionalRational
International Mathematical Olympiad 1990 Problem 5International Mathematical Olympiad 1990GamesNTPrimes
International Mathematical Olympiad 1990 Problem 6International Mathematical Olympiad 1990ConstructionGeometryPolygon