Lemma
MediumPermutations & combinations
AQuA-RAT train #56319 · Combinatorics · Permutations & combinations

John decides to attend a basketball game with six friends

John decides to attend a basketball game with six friends. If the party of seven sits together in seven consecutive seats, and John must NOT sit in between two of his friends, how many ways can the seven friends be arranged?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #56319

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