29.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 packes 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 needs to pack 200 boxes of the assortment?
answer: 2400
翻译完顺便做一下谢谢，有没有学数学的好方法，顺便教教我啊，陈向东的书我做完了，大白本限时也做着呢。现在速度慢，总有两个粗心错了，还有一两个翻译不通，我数学要考760分以上就够了，前辈们有什么经验，教教我啊
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