Lemma
MediumPermutations & combinations
AQuA-RAT train #22679 · Combinatorics · Permutations & combinations

Five different books (A, B, C, D and E) are to be…

Five different books (A, B, C, D and E) are to be arranged on a shelf. Books A , B ,C and D ARE to be arranged first and second starting from the right of the shelf. The number of different orders in which books E may be arranged is

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #22679

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