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
21
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
______enoughtimeandmoney,theresearcherswouldhavebeenabletodiscovermo
[originaltext]M:Wearebothfreethisafternoon.Shallwegosurfing?W:Gosu
Ifyouareayoungcollegestudent,mostofyourconcernsaboutyourhealth
TheNationalTrustinBritainplaysanincreasinglyimportantpartinthepr
Asadults,itseemsthatweareconstantl
Aroundtwoo’clockeverynight,Suewill
对于设计上没有具体要求,按一、二、三级抗震等级设计的框架和斜撑构件中的纵向受力钢
市场需求不变,由于供给增加,导致()。A.均衡价格下降,均衡数量增加
证券公司从事介绍业务的人员必须具备( )。A.期货从业人员资格 B.证券投资咨
()的本质是一种公平的交换或交易。A.薪酬 B.内在薪酬 C.外在
最新回复
(
0
)