AQuA-RAT train #2864 · Combinatorics · Permutations & combinations

Father John forms a choir from the church attendants

Father John forms a choir from the church attendants. 30 people attend John's church, and the choir has 28 spots available, with one person as the lead singer. How many different combinations does John have?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #2864

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