首页
登录
职称英语
If one number is chosen at random from the first 1,000 positive integers, what i
If one number is chosen at random from the first 1,000 positive integers, what i
游客
2024-01-12
18
管理
问题
If one number is chosen at random from the first 1,000 positive integers, what is the probability that the number chosen is a multiple of both 12 and 8?
选项
A、1/25
B、41/1000
C、3/250
D、9/16
E、2/125
答案
B
解析
从前1000个正整数中随机挑选1个数字,则一共有1000种可能的结果。现在需要计算1到1000中有几个12和8的公倍数,由于12和8的最小公倍数是24,所以求24的倍数的个数即可。而1000/24=41……16,共有41个24的倍数。因此概率为41/1000,答案为B选项。
转载请注明原文地址:https://tihaiku.com/zcyy/3355300.html
相关试题推荐
Thenumberoftheemployeesinourcompanyis________thatintheirs.A、twiceasl
Givemeyourtelephonenumber,________Ineedyourhelp.A、whetherB、unlessC、ore
Thenumberofmembersintheclub________totwohundred.A、werelimitedB、limits
Howmanypositivefactorsdo180and96haveincommon?A、6B、12C、16D、18E、24
Thesumofthenon-primenumbersbetween40and50,non-inclusive,isA、131B、176
Lotteryballsnumberedconsecutivelyfrom1through100areplacedinaspinner.
Ifrisnegativeandsispositive,whichofthefollowingmustbenegative?A、|r
Thesquarerootof800isbetweenwhichofthefollowingintegers?A、21and25B、
If[img]2011q3/ct_egmatqm_egmatqchoose_0454_201121[/img]forallnumbersq,r,s
Ifathree-digitnumberisselectedatrandomfromtheintegers100to999,incl
随机试题
Makinggooduseofthecollegelibrarymightbeamaximalhelptostudents’s
[originaltext]Arecentstudyshowsthatmeatconsumptionisoneofthemain
Ialwaysthinkofbookswith【B1】______feeling,beingdeeply【B2】______toth
DepartingforLosAngelesisnoordinary【C1】______whereasforforeignstud
[originaltext]EverycultureandeverycountryintheworldcelebratestheN
[originaltext]Inthiscentury,photographshavebeenreallyimportantfort
Thesweetconfectionknownaschocolateisconsumedtothedelightofmillio
Unlikedownturnspast,Europeannationshavekeptunemploymentfigureslowre
【教学过程】 2.请对学生情况进行分析? 【参考答案】 圆的方程是学生在初中学习了圆的概念和基本性质后,又掌握了求曲线方程的一般方法的基础上
(2015年真题)2013年7月10日,邢某在厂房内对机车司机室顶部进行擦洗保洁
最新回复
(
0
)