Lemma
MediumAlgebra word problems
AQuA-RAT train #53155 · Algebra · Algebra word problems

Consider the set S = {1, 2, 3, …., 1000}

Consider the set S = {1, 2, 3, …., 1000}. How many arithmetic progressions can be formed from the elements of S that start with 1 and with 1000 and have at least 3 elements?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #53155

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