AQuA-RAT train #62907 · Combinatorics · Permutations & combinations
Four persons enter the lift of a nine storey building at the…
Four persons enter the lift of a nine storey building at the ground floor. In how many ways can they get out of lift on any floor other than ground floor
AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #62907
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