Lemma
MediumPermutations & combinations
AQuA-RAT train #48725 · Combinatorics · Permutations & combinations

A bag contains nine yellow balls, three white balls and four red…

A bag contains nine yellow balls, three white balls and four red balls. In how many ways can two balls be drawn from the bag?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #48725

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