Lemma
MediumPermutations & combinations
AQuA-RAT train #84724 · Combinatorics · Permutations & combinations

Romi has a collection of 10 distinct books (8 small and 2…

Romi has a collection of 10 distinct books (8 small and 2 large). In how many ways can he select 5 books to take with him on a trip if he has room for only 1 large book?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #84724

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