首页
登录
职称英语
In a graduating class of 236 students, 142 took algebra and 121 took chemistry.
In a graduating class of 236 students, 142 took algebra and 121 took chemistry.
游客
2024-01-12
71
管理
问题
In a graduating class of 236 students, 142 took algebra and 121 took chemistry. What is the greatest number of students that could have taken both algebra and chemistry?
选项
A、21
B、27
C、37
D、121
E、142
答案
D
解析
一个236名学生的研究生班,有142人选修代数,121人选修化学,问最多有多少人既修代数又修化学?
解:本题的正确答案为(D)。本题也即求两个集合交集的最大值,交集中的元素数小于或等于较小的集合中的元素数,所以最多有121个同时选了两门课。
转载请注明原文地址:https://tihaiku.com/zcyy/3356713.html
相关试题推荐
—HowmanystudentsaregoingtotheGreatWall?—________.A、NoneB、NooneC、NoD
Theyare________studentsthattheyallperformedwellinthenationwideexaminat
Inasampleof800highschoolstudentsinwhichallstudentsareeitherfreshme
KingSchoolhasanenrollmentof900students.Theschooldayconsistsof6clas
Schoolsexpecttextbookstobeavaluablesourceofinformationforstudents
Schoolsexpecttextbookstobeavaluablesourceofinformationforstudents
Schoolsexpecttextbookstobeavaluablesourceofinformationforstudents
Schoolsexpecttextbookstobeavaluablesourceofinformationforstudents
Whencollegestudentswereaskedabouttheirexperiencesinchildhood,thosewho
InMarch300collegestudentsturnedoutinWashingtontoprotestagainstpropos
随机试题
Theoldlady______leavingthestorewithoutpayingforthegoods.A、refusedB、den
Participationinhighschoolsportsisnotaconstitutionalright.Rather,i
Traditionally,universitieshavecarriedouttwomainactivities:resear
[originaltext]J:Ohyes,theyhaveagymnasiumthattheguestscanuse.There’s
A.传导性聋 B.神经性聋 C.感音性聋 D.混合性聋 E.中枢性聋中耳
三分群血细胞分析仪中,第一群主要是A.淋巴细胞 B.嗜酸性粒细胞 C.嗜碱性
下边四个图形中,只有一个是由上边的四个图形拼合(只能通过上、下、左、右平移)而成
关于对交检批的处理的说法,正确的是()。 A.对于判为接收的批,使用方应连同样
听觉中枢位于() A.额叶B.顶叶C.颞叶D.枕叶
编制施工管理任务分工表,涉及到的事项有:①确定工作部门或个人的工作任务;②项目
最新回复
(
0
)