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  3. A candy assortment consists of seven flavors of chocolate-covered creams packed in two-layered boxes with 27 creams in each laye

A candy assortment consists of seven flavors of chocolate-covered creams packed in two-layered boxes with 27 creams in each laye

admin2009-05-19  59
问题 A candy assortment consists of seven flavors of chocolate-covered creams packed in two-layered boxes with 27 creams in each layer. The flavors are always packed in rows so that the flavor varies with each piece in the following order: vanilla, orange, cherry, vanilla raspberry, lime, pecan, cherry, lemon. How many chocolate-covered vanilla creams are needed to pack 200 boxes of the assortment?
选项 A、600
B、1200
C、1800
D、2400
E、3600
答案D
解析 一份包括7种口味的巧克力奶糖被装在双层盒子中，每层装27块奶糖。每行放置的奶糖块块口味不同且以如下口味顺序放置：vanilla，orange，cherry，vanilla，raspberry，lime，pecan，cherry，lemon。问200个糖果盒中需要装多少块vanilla口味的巧克力奶糖?
解：本题的正确答案是(D)。糖果盒的每行9块糖中有2块是vanilla口味，每层有27÷9=3行，每个盒子中有2层糖，那么每个盒子中vanilla口味的奶糖有2×3×2=12块，所以两个盒子有共有vanilla口味的奶糖12×200=2400块。
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