Lemma
MediumPermutations & combinations
AQuA-RAT train #91402 · Combinatorics · Permutations & combinations

. A question paper consists of five problems, each problem having three internal choices. In how many ways can a candidate attempt one or more problems?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #91402

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