Lemma
MediumPermutations & combinations
AQuA-RAT train #13381 · Combinatorics · Permutations & combinations

An design manager has 10patterns of chairs & 10patterns of tables

An design manager has 10patterns of chairs & 10patterns of tables. In how many ways can he make a pair of table & chair?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #13381

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