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Italy MO — 32 People Round Table Choose 3 No Adjacent

1550AdeptCombinatoricsCounting Principles

Olimpiadi della Matematica

Attorno a un tavolo rotondo sono sedute, a distanza costante l'una dalla successiva, 32 persone. In quanti modi è possibile scegliere 3 di loro in modo che a coppie non siano né adiacenti né diametralmente opposte? (A) 2246 (B) 2480 (C) 3616 (D) 24128 (E) Nessuna delle precedenti
0 students attempted0% solvedRating 1550

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