AQuA-RAT train #28783 · Combinatorics · Permutations & combinations
A librarian has a set of nine books, including four different books…
A librarian has a set of nine books, including four different books about Abraham Lincoln. The librarian wants to put the nine books on a shelf with the four Lincoln books next to each other, somewhere on the shelf among the other five books. How many different arrangements of the nine books are possible?
AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #28783
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