1.         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?

1. 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.
2. Previous increases in cigarette prices in Coponia have generally been due to increases in taxes on cigarettes.
3. 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.
4. 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.
5. The number of people in Coponia who smoke cigarettes has remained relatively constant for the past several years.

这题的答案有两个：A和E，我倾向于A，大家讨论下。

A，

E谈的人口总数跟人均消费数量无关，大家口袋里的钱跟多少一起抽烟没关系

A

just a mathatic question

We have know a condition that when ten-percentage-point increase in cigarette price,sales of cigarettes by four percent

Now,we know that per capita sales of cigarettes by four percent.What does it mean?That means ten-percentage-point increase in cigarette price has occurred.And we know that last year the price is 90cents.And know 9 cents tax have been raised.What's the relationship between 9 and 90?That's 10% increase.So what we would know? That is manufacturer did nothing but put the extra tax ,9 cents, onto 90 cents directly,which is the price in last year.So A is the correct answer.

明显选A啊，政府的算盘是，加税后价格上涨，所以就会下降人均吸烟数量。前提是烟草公司也不愿意减少他们的每包利润来，以冲减增加的税款来保持原有的价格，这样才有可能一定会涨价，才有后面的降低人均销量。因为如果烟草公司选择减少利润而冲销了增加的税款，就可以维持价格不变，所以就没有后面的推论了。

懂了，B错在时间错位