Lemma
MediumPermutations & combinations
AQuA-RAT train #5884 · Combinatorics · Permutations & combinations

A question paper consists of five problems, each problem having three internal…

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?

This problem repeats another one in the library (at most with different numbers), so it's left out of browsing.

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #5884

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