首页
登录
职称英语
A man has 29 socks in his drawer, 9 identical blue, 8 identical grey and 12 iden
A man has 29 socks in his drawer, 9 identical blue, 8 identical grey and 12 iden
游客
2024-08-15
33
管理
问题
A man has 29 socks in his drawer, 9 identical blue, 8 identical grey and 12 identical black. The lights have fused and he is completely in the dark. How many socks must he take out to make certain that he has a pair of each colour?
选项
A、21.
B、14.
C、23
D、24
答案
C
解析
每种颜色有两只,在完全黑暗的情况下,三种颜色完全看不出来,只有去算最大化的可能,即12+9+2=23,只有这样才能保证每种颜色有2只。所以选项C正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3720235.html
相关试题推荐
Yoursockdrawercontainstenpairsofwhitesocksandtenpairsofblacksocks.
Amanhas29socksinhisdrawer,9identicalblue,8identicalgreyand12iden
Amanhas53socksinhisdrawer:21identicalblue,15identicalblackand17i
随机试题
Asaphysicianwhotravelsquitealot,Ispendalotoftimeonplaneslist
[originaltext]Intoday’sclass,wewilltalkaboutsomethreeheroesofour
SHOAL:A、bottomlessB、uncomplicatedC、sophisticatedD、protectedE、directA
Completetheformbelow.WriteNOMORETHANTHREEWORDSforeachanswer.[img]20
Ediegavemesomevery______adviceonthetriptoMontreal.A、preciousB、wealthy
DungFossilsSuggestDinosaursAteGrassAncientpie
在企业预算管理中,预算委员会应当对企业预算的管理工作负总责。()
以下关于DNS服务器的说法中,错误的是( )。A.DNS的域名空间是由树状结构
公文的行文关系根据隶属关系和职权范围确定,一般不得越级行文,特殊情况需要越级行文
下列选项中,属于绘画中三原色的有()A.黄 B.蓝 C.绿
最新回复
(
0
)