Lemma
MediumPermutations & combinations
AQuA-RAT train #5322 · Combinatorics · Permutations & combinations

Eight women of eight different heights are to pose for a photo…

Eight women of eight different heights are to pose for a photo in two rows of four. Each woman in the second row must stand directly behind a shorter woman in the first row. In addition, all of the women in each row must be arranged in order of increasing height from left to right. Assuming that these restrictions are fully adhered to, in how many different ways can the women pose?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #5322

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