AQuA-RAT train #16139 · Combinatorics · Permutations & combinations

There are k members in a certain department, including Michael

There are k members in a certain department, including Michael. Two representatives are to be selected to attend a company conference. If there are 55 possible combinations in which Michael is 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 #16139

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