Lemma
MediumDigits
AQuA-RAT train #49345 · Number Theory · Digits

One boy forgot the last digit of a 7 digit telephone no

One boy forgot the last digit of a 7 digit telephone no. If he randomly dialthe final 3 digits after correctly dialing the 1st four, then what is the chance of dialing the correct no.?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #49345

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