首页
登录
职称英语
When the even integer n is divided by 7, the remainder is 5, then what is the re
When the even integer n is divided by 7, the remainder is 5, then what is the re
游客
2024-01-12
31
管理
问题
When the even integer n is divided by 7, the remainder is 5, then what is the remainder when n is divided by 14?
选项
A、5
B、10
C、6
D、12
E、it can not be calculated according to the information above
答案
D
解析
n被7除余数为5,那么n可以表示为n=7k+5,由于n是偶数,因此k必然为奇数,假设k=2m+1,那么n可以写为n=14m+12,所以n被14除余数为12。有些考生认为是不能够计算。其实是忽略了n是偶数这一个环节。因为在n为奇数的情况下n=7k+5,那么k必然为偶数,7k必能够被14整除,那么7k+5除以14,余数为5。
转载请注明原文地址:https://tihaiku.com/zcyy/3354743.html
相关试题推荐
Whichofthefollowingisequaltothecubeofanon-integer?A、-64B、-1C、8D、9
Howmanydifferentpositiveintegersarefactorsof342?A、9B、11C、12D、20E、22
Whatisthesmallestintegerkforwhich64k>414?A、4B、5C、6D、7E、8BIfwedon
Ifxandyareoddintegers,whichofthefollowingmustalwaysbeanon-integer
36Ifxisanintegerandy=4x+3,whichofthefollowingcannotbeadivisorof
Thesquarerootof800isbetweenwhichofthefollowingintegers?A、21and25B、
Whichofthefollowingcannotbethemedianoffivepositiveintegersa,b,c,d
If[img]2011q3/ct_egmatqm_egmatqchoose_0381_201121[/img]forallintegersxand
Ifaandbareoddintegers,whichofthefollowingisaneveninteger?A、a(b-4)
Whatisthegreatestpossiblecommondivisoroftwodifferentpositiveintegers
随机试题
(76)Heredity(遗传)isnottheonlythingthatinfluencesourcolor.Wherewe
Sincethereissuchanabundanceoffoodinthesea,itisunderstandableth
Neurotechnologyhaslongbeenafavoriteofscience-fictionwriters.InNeur
[originaltext]Youcantelltheageofatreebycountingitsrings.Butthe
【教学过程】 (一)导入新课 西汉史学家司马迁有云:“人固有一死,或重于太山,或轻于鸿毛。”当面临是屈辱的生还是坦然的死时,他毅然决然地选择了生,发愤著
舞蹈美感特征有哪些?()A.直觉性 B.情感性 C.思想性 D.享族性
下列不同给药途径中起效最快的是A.静脉注射B.皮肤给药C.肌内注射D.口服给药E
发现断路器指示灯不能正确反映设备正常状态需更换时,应戴(),使用的工具应
根据《城乡规划法》规定,以下说法中错误的是()。A.城乡规划主管部门可以在城
参与组成复合体III的组分是 A.FMNB.Cytc1C.Cyta
最新回复
(
0
)