Lemma
MediumDigits
AQuA-RAT train #32829 · Number Theory · Digits

An student identification code consists of a vowel followed by a 3-digit…

An student identification code consists of a vowel followed by a 3-digit number greater than 200. Exactly 2 of the 3 digits in the code should be identical. How many different codes is it possible to form?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #32829

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