combinatoire collège recueilchapitre 3exercice 3.1principe des tiroirs
Two people of the same sex
Recueil COMIMa — Techniques de résolution de problèmes · 2026 · Madagascar · ★★★★★
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Parmi trois personnes, il y en a forcément deux du même sexe.
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Origin : Recueil COMIMa — Techniques de résolution de problèmes · 2026 · Madagascar
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