×

Loading...

Topic

This topic has been archived. It cannot be replied.
  • 工作学习 / 求学深造 / 请教一道GRE数学题,我连题目都没有读懂。哪位大虾能帮忙翻译一下,谢谢谢谢!(另,这是国内真题96.10的数学29题)
    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 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?
    (A) 600
    (B) 1,200
    (C) 1,800
    (D) 2,400
    (E) 3,600
    • 答案是B吗?
      • 不对。答案是D,2400。
        • 巧克力包着的糖果有7种味道.每盒2层,每层27个.每次都是按香草,橘子,樱桃香草...共9个重复一次的顺序排列.就是说梅9个里面有2个香草.那么27/9=3,则一层有6个香草.共2层6X2=12,200盒.答案是2400个香草. D
          • 太谢谢啊雨了!以后有问题我就来请教大家!
            • 常吃冰其林,包你对这些名次熟的不能再熟,呵呵。
    • D. (27 x 2 x 200/9) x 2 = 2400
    • D = 2400
      3 x 2 x 2 x 200 = 2400

      ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
      VANILLA, orange, cherry, VANILLA, raspberry, lime, pecan, cherry, lemon
      VANILLA, orange, cherry, VANILLA, raspberry, lime, pecan, cherry, lemon
      VANILLA, orange, cherry, VANILLA, raspberry, lime, pecan, cherry, lemon
      --------------------------------------------------------------------------------------------------
      VANILLA, orange, cherry, VANILLA, raspberry, lime, pecan, cherry, lemon
      VANILLA, orange, cherry, VANILLA, raspberry, lime, pecan, cherry, lemon
      VANILLA, orange, cherry, VANILLA, raspberry, lime, pecan, cherry, lemon
      ++++++++++++++++++++++++++++++++++++++++++++++++++++++++

      200 boxes like above.
      • 真是无懈可击地清晰,呵呵。
        • 最简单的方法往往效果最好 - 也是对加拿大的体会。
      • 哈哈,太感谢了!没仔细看那9个品种的具体名字,原来9个品种中有2个是VANILLA,我总是很粗心!!!!!我对你的敬仰有如滔滔江水~~~~~~~
        • 别淹着我。。。西西
        • 这是谁出的题,太卑鄙了。居然有两个。
          • 都是ETS惹的祸!
    • D. 27*2/9*2*200