首页
登录
职称英语
Of the people in a certain survey, 58 percent were at most 40 years old and 70 p
Of the people in a certain survey, 58 percent were at most 40 years old and 70 p
游客
2024-01-12
62
管理
问题
Of the people in a certain survey, 58 percent were at most 40 years old and 70 percent were at most 60 years old. If 252 of the people in the survey were more than 40 years old and at most 60 years old, what was the total number of people in the survey?
选项
A、1900
B、2100
C、2400
D、2700
E、3000
答案
B
解析
In this question, it is given that of the people surveyed, 58% were at most 40 years old and 70% were at most 60 years old. Therefore, 70% — 58%, or 12%, of the people surveyed were more than 40 years old and at most 60 years old, and you are given that 252 people are in this group. Let x be the total number of people in the survey. Then 12% of x is 252, that is, 0.12x = 252, and so x =
= 2,100. Therefore, the total number of people in the survey was 2,100, and the correct answer is Choice B.
转载请注明原文地址:https://tihaiku.com/zcyy/3355750.html
相关试题推荐
Itisanunfortunatefactoftoday’slifethatmostpeoplearegrowingupun
Itisanunfortunatefactoftoday’slifethatmostpeoplearegrowingupun
Itisanunfortunatefactoftoday’slifethatmostpeoplearegrowingupun
Itisanunfortunatefactoftoday’slifethatmostpeoplearegrowingupun
Itisanunfortunatefactoftoday’slifethatmostpeoplearegrowingupun
Somepeoplethinkoflifeasagame.Therearesimilaritiesbetweenlifeand
Somepeoplethinkoflifeasagame.Therearesimilaritiesbetweenlifeand
Somepeoplethinkoflifeasagame.Therearesimilaritiesbetweenlifeand
Somepeoplethinkoflifeasagame.Therearesimilaritiesbetweenlifeand
Somepeoplethinkoflifeasagame.Therearesimilaritiesbetweenlifeand
随机试题
Thereareapproximatelythreequartersofatonoftermites(白蚁)foreveryp
【B1】[br]【B15】A、flavourB、fragranceC、smellD、perfumeA本题考查词语辨析能力。flavor表示食品等的“
SydneyOperaHousemustbeoneofthemostrecognizableimagesofthemodem
“认知地图”的概念出自哪部著作?( )A.《城市意象》 B.《城市建筑》
FAB分类的依据是A.国际上通用的分类分型原则B.WHO推荐的分类分型原则C.以
“矮子里找高个”“水涨船高”是一种( )。A.相对评价 B.定量评价 C.
干粉灭火系统的模拟喷放试验判定标准有()。A.延时启动时符合设定时间 B.有
消防设施检测机构对某建筑的机械排烟系统进行检测时,打开排烟阀,消防控制室接到风机
Austin-Flint杂音和二尖瓣狭窄舒张期杂音的主要辨别点在于( )。A.
(2021年真题)依据船舶吨税征收管理的相关规定,下列说法正确的有()。A.
最新回复
(
0
)