Lemma
MediumPermutations & combinations
AQuA-RAT train #5116 · Combinatorics · Permutations & combinations

A bakery sells 4 varieties of pastries

A bakery sells 4 varieties of pastries. John buys 10 pastries making sure, he gets at least one of each kind. In how many ways can John make the purchase ?

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AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #5116

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