Lemma
MediumPermutations & combinations
AQuA-RAT train #62415 · Combinatorics · Permutations & combinations

How many arrangements of four 0's (zeroes), two 1's and two 2's…

How many arrangements of four 0's (zeroes), two 1's and two 2's are there in which the first 1 occur before the first 2?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #62415

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