Lemma
MediumPermutations & combinations
AQuA-RAT train #94386 · Combinatorics · Permutations & combinations

Of the 5 distinguishable wires that lead into an apartment, 2 are…

Of the 5 distinguishable wires that lead into an apartment, 2 are for cable television service, and 3 are for telephone service. Using these wires, how many distinct combinations of 3 wires are there such that at least 1 of the wires is for cable television?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #94386

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