Lemma
MediumCounting & chance
AQuA-RAT train #52974 · Probability · Counting & chance

An integer n between 1 and 100, inclusive, is to be chosen…

An integer n between 1 and 100, inclusive, is to be chosen at random. What is the probability that n(n+1) will be divisible by 5 ?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #52974

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