AQuA-RAT train #71642 · Combinatorics · Permutations & combinations
A bag contains nine black balls, three red balls and four red…
A bag contains nine black balls, three red balls and four red balls. In how many ways can two balls be drawn from the bag?
AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #71642
Stuck? A gentle nudge
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