GWD3-Q14

fcwr

In January of last year the Moviemania chain of movie theaters started propping its popcorn in canola oil, instead of the less healthful coconut oil that it had been using until then.  Now Moviemania is planning to switch back, saying that the change has hurt popcorn sales.  That claim is false, however, since according to Moviemania’s own sales figures, Moviemania sold 5 percent more popcorn last year than in the previous year.

Which of the following, if true, most strongly supports the argument against Moviemania’s claim?

A.    Total sales of all refreshments at Moviemania’s movie theaters increased by less than 5 percent last year.
B.    Moviemania makes more money on food and beverages sold at its theaters than it does on sales of movie tickets.
C.    Moviemania’s customers prefer the taste of popcorn popped in coconut oil to that of popcorn popped in canola oil.
D.    Total attendance at Moviemania’s movie theaters was more than 20 percent higher last year than the year before.
E.    The year before last, Moviemania experienced a 10 percent increase in popcorn sales over the previous year.

求教这道题目的解题思路，个人觉得比较特殊

NicoleYu

这道题的思路大概是这样的：

这家电影院原来用coconut oil做popcorn，去年换成了canola oil
现在又想换回来，原因是说这个变换有碍popcorn的销售
文章的结论是说这个要求换回来的说法是不成立的，原因是去年popcorn的销售增加了5%

问题是对文章结论的支持。

这里需要明确的一点是：怎样才算是有碍popcorn的销售？单纯和自己的销量比是不够的，还需要和整体的销售量比较
如果所有点心整体的销量都提高了，而popcorn提高的5%是在平均数一下，那么popcorn低于平均水平，其销售可以说是不尽如人意的
反过来，正如A所说，去年点心的整体销量的增幅不到5%，也就说明去年popcorn的销售是好于平均水平的，说明其销售状况是改善了的，这就是对文章结论的支持（同时对电影院的claim进行反驳）