Lemma
MediumCounting & chance
AQuA-RAT train #52021 · Probability · Counting & chance

In a box, there are 4 green, 5 black and 7 red…

In a box, there are 4 green, 5 black and 7 red pencils. One pen is picked up randomly. What is the probability that it is neither black nor red?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #52021

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