Lemma
MediumPermutations & combinations
AQuA-RAT train #15019 · Combinatorics · Permutations & combinations

five children, Arya, Betsy, Chen, Daniel, Emily, are to be seated in…

five children, Arya, Betsy, Chen, Daniel, Emily, are to be seated in a single row of six chairs. If Betsy cannot sit next to Emily, how many different arrangements of the six children are possible?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #15019

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