OG-136, OG-153

BetterMan · 发表于 2003-11-14 23:13:00

OG136,153, OG的解释没太看明白.

, 还请xdjm们指教一下!
136.问题
这道题是否要联想的太多了: 杂志的主要收入是来源于广告,而不是别的. 为什么没有考虑少发行一半,也要少赚一半的钱呢, (这个好像是很明显的一个考虑因素).? 还是说都是免费的, 只有广告收入?
136. Because postage rates are rising, Home Decorator magazine plans to maximize its profits by reducing by one half the number of issues it publishes each year. The quality of articles, the number of articles published per year, and the subscription price will not change. Market research shows that neither subscribers nor advertisers will be lost if the magazine's plan is instituted.
Which of the following, if true, provides the strongest evidence that the magazine's profits are likely to decline if the plan is instituted?
(A) With the new postage rates, a typical issue under the proposed plan would cost about one-third more to mail than a typical current issue would.
(B) The majority of the magazine's subscribers are less concerned about a possible
reduction in the quantity of the magazine's articles than about a possible loss of the
current high quality of its articles.
(C) Many of the magazine's long-time subscribers would continue their subscriptions even
if the subscription price were increased.
(D) Most of the advertisers that purchase advertising space in the magazine will continue to
spend the same amount on advertising per issue as they have in the past.
(E) Production costs for the magazine are expected to remain stable.

153: 问题
A为什么不能算在cost-efficiency里面? 是定义嘛? 原油的成本为什么就不算在cost-efficiency里面了? 既然太阳能工厂的cost里面考虑了equipment cost!

153. Technological improvements and reduced equipment costs have made converting solar
energy directly into electricity far more cost-efficient in the last decade. However, the threshold
of economic viability for solar power (that is, the price per barrel to which oil would have to rise
in order for new solar power plants to be more economical than new oil-fired power plants) is
unchanged at thirty-five dollars.
Which of the following, if true, does most to help explain why the increased cost-efficiency
of solar power has not decreased its threshold of economic viability?
(A) The cost of oil has fallen dramatically.
(B) The reduction in the cost of solar-power equipment has occurred despite increased
raw material costs for that equipment.
(C) Technological changes have increased the efficiency of oil-fired power plants.
(D) Most electricity is generated by coal-fired or nuclear, rather than oil-fired, power plants.
(E) When the price of oil increases, reserves of oil not previously worth exploiting become
economically viable.

[此贴子已经被作者于2004-10-22 10:26:01编辑过]

Marrow · 发表于 2003-11-14 23:33:00

1.the argument has excluded all other factors rather than the income of the ad.,which is the key factor for the income's declining.
2. threhold keeps stable means the cost of the solar power plants remains stable.since the equipment's cost is reduced,what can make the cost of plants stable? then,the raw material costs appear. attention:here the threhold refers to the increased price,not the price difference.

BetterMan · 发表于 2003-11-16 20:45:00

thanks for your explain! Marrow.

mythicalman · 发表于 2003-11-17 04:07:00

答案分别是D和C，对否？

babypace · 发表于 2004-11-15 07:40:00

From fbfamous :

OG-136再次请教，还是没明白

136. Because postage rates are rising, Home Decorator magazine plans to maximize its profits by reducing by one half the number of issues it publishes each year. The quality of articles, the number of articles published per year, and the subscription price will not change. Market research shows that neither subscribers nor advertisers will be lost if the magazine's plan is instituted.
Which of the following, if true, provides the strongest evidence that the magazine's profits are likely to decline if the plan is instituted?
(A) With the new postage rates, a typical issue under the proposed plan would cost about one-third more to mail than a typical current issue would.
(B) The majority of the magazine's subscribers are less concerned about a possible
reduction in the quantity of the magazine's articles than about a possible loss of the
current high quality of its articles.
(C) Many of the magazine's long-time subscribers would continue their subscriptions even
if the subscription price were increased.
(D) Most of the advertisers that purchase advertising space in the magazine will continue to
spend the same amount on advertising per issue as they have in the past.
(E) Production costs for the magazine are expected to remain stable.

实在对不起各位，这个题以前讨论过，不过我还是不明白：

profit=revenue—cost 对吧？那我不明白答案D，杂志是每个issue都有revenue的和cost，那凭什么说半数的issue少了，那就一定是利润少了呢？它成本不是还少了么？

还有A，既然说每个issue的价格都涨了，那就是平均每个issue的利润降低了呀？不就是总利润降低么？？我真的是不明白，除非他问的是总收入而不是利润。可是这就概念明显不同了吧？？？不明白不明白！！！痛苦死了！！！！

babypace · 发表于 2004-11-15 08:06:00

From fbfamous :

OG-136再次请教，还是没明白
136. Because postage rates are rising, Home Decorator magazine plans to maximize its profits by reducing by one half the number of issues it publishes each year. The quality of articles, the number of articles published per year, and the subscription price will not change. Market research shows that neither subscribers nor advertisers will be lost if the magazine's plan is instituted.
Which of the following, if true, provides the strongest evidence that the magazine's profits are likely to decline if the plan is instituted?
(A) With the new postage rates, a typical issue under the proposed plan would cost about one-third more to mail than a typical current issue would.
(B) The majority of the magazine's subscribers are less concerned about a possible
reduction in the quantity of the magazine's articles than about a possible loss of the
current high quality of its articles.
(C) Many of the magazine's long-time subscribers would continue their subscriptions even
if the subscription price were increased.
(D) Most of the advertisers that purchase advertising space in the magazine will continue to
spend the same amount on advertising per issue as they have in the past.
(E) Production costs for the magazine are expected to remain stable.

实在对不起各位，这个题以前讨论过，不过我还是不明白：

profit=revenue—cost 对吧？那我不明白答案D，杂志是每个issue都有revenue的和cost，那凭什么说半数的issue少了，那就一定是利润少了呢？它成本不是还少了么？刊物数量减少一半时，总的利润将会是原来的一半。

每个刊物2 revenue, 1 cost,

Revenue : 100份=100x2=200 Cost: 100份=100x1=100 rofit: 100

一半数量刊物 Revenue: 50x2=100 Cost: 50x1=50 rofit: 50

除了考虑marrow的解释，这题我的拙见：

OG解释了A，由于邮费涨了1/3，但是如果减少刊物数目到一半，所以总的年邮费会降低。所以执行计划，A并不能证明会减少利润。B和C里面都说了，订阅刊物的客户对价格和刊物数量都不敏感，所以B和C也不能证明利润会减少。由于广告商花在每刊的钱是一样的，如果刊物数量减半就意味着广告收入减半，直接影响了利润。E生产成本不变，减少一半刊物，减少一半的成本，所以不会影响利润。

[此贴子已经被作者于2004-11-15 8:29:40编辑过]

lawyer_1 · 发表于 2004-11-15 08:18:00

推理：每年出版期数减少一半，但每年的文章质量和数量没变，每期的定购价没变。所以杂志社的利润减少（这个利润应该是指每年的利润）

D说广告商每期购买的广告费没变。所以每年广告费减少一半（因为期数减少一半）。当然杂志社利润就减少了。故为答案

A说虽然每期邮费增加，但期数减少。相抵消，虽然不知抵消情况，但原文没有信息让我们相信杂志社就亏了。故支持不了结论。

fbfamous · 发表于 2004-11-15 16:55:00

O谢谢两位牛人的解释

howru · 发表于 2004-12-7 12:11:00

以下是引用lawyer_1在2004-11-15 8:18:00的发言：

推理：每年出版期数减少一半，但每年的文章质量和数量没变，每期的定购价没变。所以杂志社的利润减少（这个利润应该是指每年的利润）...

仅供参考:

"每期的定购价没变。" - 这个理解似乎不对. 文中只说:"the subscription price will not change." 国外定 magazine 是一年一 subscription 的, 所以 subscription price not change 就是说每年的总收入不变, 而每期价格是原来的 2 倍.

mikejia · 发表于 2004-12-7 23:19:00

同意楼上。

我是这么理解的：原来一年12本，现在成了6本。答案就出来了。

OG-136, OG-153

OG-136, OG-153

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