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
71
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
ThefullofficialnameofAustraliaisA、TheRepublicofAustralia.B、TheCommonw
Wouldyoumindme(open)______thewindowtoletfreshairin?opening本题测试的是短语固定
Whetheranoperationshouldbeperformedinthiscase______verymuchonthepat
(1)Supposeyouaredrivingonahighwaywiththreelanesgoinginyourdirec
Thebagisveryheavy.Comeandlendme
轴向抗拔静载荷试验桩顶累计上拔量超过()时可以终止加载。A.50mm B
患者女,42岁。从高处跌下,头部着地,当时昏迷约10分钟后清醒,左耳道流出血性液
根据市场和企业状况,装配车间15—8型号汽车的投入量调整为15000台,则齿轮加
被称为“现代电影之父”的是( )。A、卓别林 B、格里菲斯 C、爱森斯坦
以下属于政府间转移支付特点的有( )。A.范围只限于政府之间 B.范围仅限于
最新回复
(
0
)