求各位大牛解答gwd的一道逻辑题

justinleeme

33: GWD-29-Q38
In the past, every ten-percentage-point increase in cigarette prices in the country of Coponia has decreased per capita sales of cigarettes by four percent.  Coponia is about to raise taxes on cigarettes by 9 cents per pack.  The average price of cigarettes in Coponia is and has been for more than a year 90 cents per pack.  So the tax hike stands an excellent chance of reducing per capita sales of cigarettes by four percent.

Which of the following is an assumption on which the argument depends?



A. Tobacco companies are unlikely to reduce their profit per pack of cigarettes to avoid an increase in the cost per pack to consumers in Coponia.

B. Previous increases in cigarette prices in Coponia have generally been due to increases in taxes on cigarettes.

C. Any decrease in per capita sales of cigarettes in Coponia will result mainly from an increase in the number of people who quit smoking entirely.

D. At present, the price of a pack of cigarettes in Coponia includes taxes that amount to less than ten percent of the total selling price.

E. The number of people in Coponia who smoke cigarettes has remained relatively constant for the past several years.

答案为什么是B？很疑惑

期期啦啦

正确的是A，提高price和提高tax有差别

xubillups

c e是关于人数的无关选项，d关于tax在价格中的比重也是无关的。答案是A吧，题目是说价格涨了销售额就降，然后要涨税，所以估计价格要降，那么缺的一个前提就是涨税会引起涨价。就是A，这里cost to customers就等于是price的另一种说法。B项没有说明tax涨幅和price涨幅的关系，不一定tax涨9cents价格就涨9cents，所以这个做答案是无法把题目的推理补全的。

xubillups

上面那个“所以估计价格要降”写错了 不好意思，应该是（人均）销售额要降。。。

120823892

楼上xubillups终于解答了我的疑问。。。