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For a certain price, the buyer of a set of playground equipment must choose any 3 of 5 large pieces of equipment and any 4 of 5 small pieces of equipment. How many different sets of large and small pieces are available to the buyer for that price?
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· 相关考点
6.3.5 组合
6.3.5 组合
以上解析由 考满分老师提供。
