Lemma
MediumPermutations & combinations
AQuA-RAT train #55867 · Combinatorics · Permutations & combinations

For an upcoming charity event, a male vocalist has agreed to sing…

For an upcoming charity event, a male vocalist has agreed to sing 4 out of 6 “old songs” and 2 out of 5 “new songs.” How many ways can the singer make his selection?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #55867

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