GWD15-24

Ibelive

Factor	Percent of Respondents
User-friendly	56%
Fast response time	48%
Bargain prices	42%

 

 

The table gives three factors to be considered when choosing an Internet service provider and the percent of the 1,200 respondents to a survey who cited that factor as important.  If 30 percent of the respondents cited both “user-friendly” and “fast response time,” what is the maximum possible number of respondents who cited “bargain prices,” but neither “user-friendly” nor “fast response time?”

 

A.     312

B.     336

C.     360

D.     384

E.      420

thanks

 

bellefish

答案是A吗？

我是这样做的：“user-friendly” and “fast response time,” 一共占56％＋48％－30％＝74％。两者都没选的就是1－74％＝26％。所以只选Bargain prices   的最多不能超过26％，那么就是1200*26％＝312人。

carp

agree upstair!!

elevenjy1107

聪明~~~~

斯咏

up