首页
登录
职称英语
When a certain number is divided by 7, the remainder is 0. If the remainder is n
When a certain number is divided by 7, the remainder is 0. If the remainder is n
游客
2025-02-24
31
管理
问题
When a certain number is divided by 7, the remainder is 0. If the remainder is not 0 when the number is divided by 14, then the remainder must be ?
选项
A、1
B、2
C、4
D、6
E、7
答案
E
解析
某数被7除时余数为0,若被14除时余数不为0,那么余数一定是
解:本题的正确答案为(E)。该数是7的倍数,可分两种情况:(1)该数是7的奇数倍,可写成:7n=7×(2k+1)=14k+7,其中n=2k+1; (2)该数是7的偶数倍,可写成:7n=7×2k=14k,其中n=2k;由以上可知,当该数不能被14整除时,其余数一定是7。
转载请注明原文地址:https://www.tihaiku.com/zcyy/3971267.html
相关试题推荐
FinancialuncertaintiesfromtheaccidentatThreeMileIslandmayproveevenmo
Twoyearsago,radiostationWCQPinRockvilledecidedtoincreasethenumberof
Thebuyerofacertainmechanicaltoymustchoose2of4optionalmotionsand4
Alinenshophasacertaintablecloththatisavailablein8sizesand10colors
Ifn=pqr,wherep,q,andrarethreedifferentpositiveprimenumbers,howma
Whichofthefollowingnumbersisbothafactorof48andamultipleof6?A、2B
NUMBEROFFARMSINTHEUNITEDSTATES,1850—1990(inmillions)[img]ct_gre6image
Whatistheleastprimenumbergreaterthan83?A、85B、87C、88D、89E、91D比83大的最
Inahistoryclassthatconsistedof30students,thenumberofseniorswas3mo
Inacertaintwo-digitnumber,theunits’digitistwicethetens’digit.Colum
随机试题
Lookatthefollowingstatements(Questions18-21)andthelistofpeoplebelow.
(1)There’sthisgreatrecurringSaturdayNightLiveskitfromseveralyears
An【21】,givinginformationonmorethanthreequartersoftheactors【22】in
ThelettersofAbigailSmithAdams,wifeofthesecondpresidentoftheUnitedS
河北省2010年全年城镇居民人均可支配收入达16263.4元,比上年增长10.
下列情况下应考虑色素痣恶变,除了A.直径>5cm B.局部有发痒.疼痛的
A.冲脉B.任脉C.督脉D.带脉E.阳维脉被称为"阴脉之海"的是
在民族自治机关组成人员中,必须由实行区域自治民族的公民担任的职务是()。A.自
依据《企业职工伤亡事故分类》(GB6441),下列事故中,属于物体打击事故类别
在确定计价定额中的利润时,可作为其计算基础的有()。A.定额人工费 B.
最新回复
(
0
)