请教高手一道题

delldell · 发表于 2004-2-15 17:36:00

Recent estimates predict that between 1982 and 1995 the greatest increase in the no. of ppl employed will be in the catagory of low-paying service occupations. This catagory, however, will not increase its share of ttl employment, whereas the category of high-paying service occupations will increse its share

What conclusion can be drawn

B. In 1995 more ppl will be working in high-paying service occupations than will be working in low paying service occupations

我怎么也不明白这个结论是怎么推出来的

delldell · 发表于 2004-2-17 22:48:00

up !

是没人知道, 还是都不屑回答啊

jnlvo · 发表于 2004-2-18 09:51:00

不懂！我推出的结果与答案相反。

番茄炒蛋 · 发表于 2004-2-18 13:10:00

这题我不知道你是把题目抄错了还是把答案弄错了

这个答案应该是错的，而且这题应该在这个礼拜的帖子里也肯定有重复的

你先去找找，要不就从大全里把原题所有的选项再贴一遍，这题有笔误

至少我记得原题不是这样的

craghack · 发表于 2004-2-18 23:31:00

我也做错了，请牛牛回答。

完整题目如下：

19. Recent estimates predict that between 1982 and 1995 the greatest increase in the number of people employed will be in the category of low-paying service occupations. This category, however, will not increase its share of total employment, whereas the category of high-paying service occupations will increase its share.

If the estimates above are accurate, which of the following conclusions can be drawn?

(A) In 1982 more people were working in low-paying service occupations than were working in high-paying service occupations.

(B) In 1995 more people will be working in high-paying service occupations than will be working in low-paying service occupations.

(C) Nonservice occupations will account for the same share of total employment in 1995 as in 1982.

(D) Many of the people who were working in low-paying service occupations in 1982 will be working in high-paying service occupations by 1995.（A）

(E) The rate of growth for low-paying service occupations will be greater than the overall rate of employment growth between 1982 and 1995.

jnlvo · 发表于 2004-2-19 00:04:00

我是这么做的：设82年时total employment 为p, 95年为q,low-paying service 雇工数为x，high为y,low-paying service 雇工增加人数为a，high增加数为b,根据题意得不等式

x/p>=(x+a)/q和(y+b)/q>y/p,两不等式相乘化简得到bx>=ay,因为a>b所以x>y

这样得到是A答案。不知错在哪里请指教。

delldell · 发表于 2004-2-19 19:45:00

番茄炒蛋 · 发表于 2004-2-20 09:58:00

大家自己更正一下吧，还在我刚刚上CD的时候就有NN说过这题是选a

而b是肯定错的

这题结合了数学的思路，大家能够把方法搞清楚就可以了，至于答案都是其次的

dawn9020 · 发表于 2012-11-14 11:30:47

1982 L H =p
+a +b
1995 L+a H+b =q

L/p=L+a/q H+b/q>H/p
L/L+a=p/q H/H+b<p/q
so H/H+b<L/L+a
H/P<L/P
So H<L
1982 High income< Low Income

请教高手一道题

请教高手一道题

所属分类: GMAT考试

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