首页
登录
职称英语
Each of 5 positive whole numbers is at least 8. The average(arithmetic mean)of t
Each of 5 positive whole numbers is at least 8. The average(arithmetic mean)of t
游客
2025-02-23
32
管理
问题
Each of 5 positive whole numbers is at least 8. The average(arithmetic mean)of these 5 numbers is 24. If the average of two of the numbers is 18, what is the greatest possible value that any of these 5 numbers can have?
选项
A、28
B、50
C、68
D、76
E、84
答案
C
解析
题意是:5个整数都大于等于8,它们的平均值为24,其中两个数的平均值是18,求5个数中最大数的可能值。5个数的和为24×5=120,其中两个数的和为18×2=36,那么剩下的三个数的和为120-36=84,由于每个数都大于等于8,要求最大数的可能值,可以假设其中某两个数为最小值8,那么剩下的那个数取最大值=86-8×2=68。
转载请注明原文地址:http://tihaiku.com/zcyy/3969340.html
相关试题推荐
Sixdifferentnumbersaretobeselectedfromthe(0,1,2,3,4,5,6)tocompos
Thenumbers3,10,17,24,31and38arethefirstsixtermsofaninfinitesequ
Eachof5positivewholenumbersisatleast8.Theaverage(arithmeticmean)oft
IfintegersMandNarepositiveandhavethesamedigits,butinreverseorder,
Howmanypositive4-digitintegersbegin(ontheleft)withallevendigitande
Acaraverages40milesperhourforthefirst6hoursofatripandaverages60
Alisthas100numbers,theexpectationofthelistis10andthestandarddevia
Thedifferenceofthereciprocalsoftwoconsecutivepositiveintegerscouldbe?
Ifnisanoddpositiveinteger,whatistheremainderwhen(n2-1)isdividedby
Inhowmanyofthewholenumbersbetween100and200doesthedigit6occurexac
随机试题
Ifyouweretoexaminethebirthcertificatesofeverysoccerplayerin2006
Thesubjectofmystudyiswomenwhoareinitiatingsocialchangeinasmall
Ourworldisfilledwithsoundsweneverhear.Thehumanauditory(听觉的)range
RecommendationWriteanoteofabout50-60wordsbasedonthefollowing
甲乙两人合伙完成一项任务,两个人都有两种行为可以选择,即努力或者偷懒,两者同时行
呼吸(次/分)脉搏(次/分) A.20~2580~100 B.25
以下不宜用氯化钠注射液溶解的注射剂中,不是由于"混浊或沉淀"的是A.毛花苷C
国际货币基金组织把货币供应量分为三个层次,其中()在货币供应量中流动性最强。A.
危险与可操作性研究(HAZOP)是一种定性安全评价方法。它的基本过程是以关键词为
以下《建设工程施工合同(示范文本)》(GF--2017--0201)通用条款规定
最新回复
(
0
)