Lemma
MediumPermutations & combinations
AQuA-RAT train #35002 · Combinatorics · Permutations & combinations

Three people of different age groups are to be seated on a…

Three people of different age groups are to be seated on a bench. How many different sitting arrangements are possible if oldest must always sit next to youngest ?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #35002

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