Lemma
MediumDigits
AQuA-RAT train #37382 · Number Theory · Digits

Of the two-digit positive integers that have no digits equal to zero…

Of the two-digit positive integers that have no digits equal to zero, how many have two digits that are equal to each other and the remaining digit different from the other two?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #37382

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