Board logo

标题: 求教GWD27-Q33 [打印本页]

作者: xiongmaoFF    时间: 2013-6-20 20:14     标题: 求教GWD27-Q33

Q33:





Favorable

Unfavorable

Not Sure

Candidate M

40

20

40

Candidate N

30

35

35



The table above shows the results of a survey of 100 voters each responded “favorable” or “unfavorable” or “not sure” when asked about their impressions of candidate M and of candidate N.  What was the number of voters who responded “favorable” for both candidates?

(1)
The number of voters who did not respond “favorable” for either candidate was 40.

(2)
  The number of voters who responded “unfavorable” for both candidates was 10.




A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.

B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.

C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

D. EACH statement ALONE is sufficient.

E. Statements (1) and (2) TOGETHER are NOT sufficient.


答案是A


请教大牛,此题怎么解!

谢谢啦!


作者: nianbohu    时间: 2013-6-21 06:09

favorable M的人有40个,favorable N的人有30个,(1) 两个都没favorable的有40人,两个都favorable为X, 则可列出等式(40+30-X)+40=100 ,所以X=10.

(2)条件是关于unfavorable的,与favorable没关系,得不出

so choose A




欢迎光临 国际顶尖MBA申请交流平台--TOPWAY MBA (http://forum.topway.org/) Powered by Discuz! 7.2