Lemma
MediumPermutations & combinations
AQuA-RAT train #42326 · Combinatorics · Permutations & combinations

David decides to attend a base ball game with four friends

David decides to attend a base ball game with four friends. If the party of five sits together in five consecutive seats, and David must NOT sit in between two of his friends, how many ways can the five friends be arranged?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #42326

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