AQuA-RAT train #25827 · Combinatorics · Permutations & combinations

There are 4 copies of 5 different pens

There are 4 copies of 5 different pens. In how many ways can they be arranged on a shelf?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #25827

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