GWD 9-13

scorpio2rd

GWD-9-Q13:

Fact: Asthma, a bronchial condition, is much less common ailment than hay fever, an allergic inflammation of the nasal passages.

Fact: over 95 percent of people who have asthma also suffer from hay fever.

 

If the information given as facts above is true, which of the following must also be true?

 

A.      Hay fever is a prerequisite for the development of asthma

B.       Asthma is a prerequisite for the development of hay fever

C.      Those who have neither hay fever nor asthma comprise less than 5 percent of the total population

D.      The number of people who have both of these ailments is greater than the number of people who have only one of them

E.       The percentage of people suffering from hay fever who also have asthma is lower than 95 percent.

Answer E,

不是很明白E是如何推出来的.....C 和D 为什么不对. 谢谢

笨笨可可

MM，这题我是这么理解的。

Fact: Asthma, a bronchial condition, is much less common ailment than hay fever, an allergic inflammation of the nasal passages.

Fact: over 95 percent of people who have asthma also suffer from hay fever.

事实1：哮喘比发烧少。

事实2，在那些得了哮喘病的人中95%的人也有发烧的毛病。也就是说总共100%的人，分为2种，1种就是得了哮喘病，一种没有得哮喘病。。

在得了哮喘病的人中（小于100%），有95%的人也有发烧毛病。那么2个多得毛病的人肯定是占100% 的人群众是少于95%的啊。。

事实1：哮喘比发烧少。

事实2，在那些得了哮喘病的人中95%的人也有发烧的毛病。也就是说总共100%的人，分为2种，1种就是得了哮喘病，一种没有得哮喘病。。

在得了哮喘病的人中（小于100%），有95%的人也有发烧毛病。那么2个多得毛病的人肯定是占100% 的人群众是少于95%的啊。。

If the information given as facts above is true, which of the following must also be true?

A.      Hay fever is a prerequisite for the development of asthma

B.       Asthma is a prerequisite for the development of hay fever

C.      Those who have neither hay fever nor asthma comprise less than 5 percent of the total population --原文没有说，有可能是大于5%的

D.      The number of people who have both of these ailments is greater than the number of people who have only one of them -原文没有说。。

E.       The percentage of people suffering from hay fever who also have asthma is lower than 95 percent.--对的。。