Lemma
MediumPermutations & combinations
AQuA-RAT train #6723 · Combinatorics · Permutations & combinations

To furnish a room in a model home an interior decorator is…

To furnish a room in a model home an interior decorator is to select 2 chairs and 2 tables from the collection of chairs and tables in a warehouse that are all different from each other. If there are 5 chairs in the warehouse and if 150 different combinations are possible, how many tables are there in the warehouse?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #6723

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