AQuA-RAT train #30226 · Combinatorics · Permutations & combinations

There are k-2 members in a certain band, including Jim and Ellen

There are k-2 members in a certain band, including Jim and Ellen. Two members are to be selected to attend the Grammy awards ceremony. If there are 28 possible combinations in which Jim and Ellen are not selected, what is the value of k?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #30226

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