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Banyak orang ada 8 (n)
Hal ini memakai aturan kombinasi
C(n,k) = n! / (k!.(n-k)!)
C(8,6) = 8! / ( 6! . 2!)
= 8 x 7 x 6! / 6! x 2 x 1
= 8 x 7 / 2
= 4 x 7
= 28
Jadi banyak tim yang dapat disusun ada 28 tim