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
2025-02-27
24
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/3974765.html
相关试题推荐
Howmanypositive4-digitintegersbegin(ontheleft)withallevendigitande
Thedifferenceofthereciprocalsoftwoconsecutivepositiveintegerscouldbe?
Ifnisanoddpositiveinteger,whatistheremainderwhen(n2-1)isdividedby
Whentheevenintegernisdividedby7,theremainderis5,thenwhatisthere
Twopositiveintegersaandbhaveonlyonecommondivisor,ifb/a+2=18/7,then
IfSisthesumofthefirstnpositiveintegers,whatisthevalueofn?(1)S
WhatisthemedianofthedatasetSthatconsistsoftheintegers17,29,10,2
[img]2022m10x/ct_ve01204002j_0008_221018[/img]Letnandkbepositiveintegers
Eachoftheintegersfrom0to9,inclusive,iswrittenonaseparateslipofbl
Thesumofthefirst100positiveintegersis5,050.Whatisthesumofthefirs
随机试题
Whatisa"stillMe"(Line1,Para.1)accordingtothetext?[br]Howmanyarti
(l)Naturally,inagroupofanimalsasdiverseasthesnakes,andwithsoma
We’vebecomearathergerm-phobic(恐惧症)society,whatwithourantibacterial
Whatcanweinferfromthispassage?[originaltext]ThesuiciderateinAmeric
学校教学工作的基本组织形式是()。A.课堂教学 B.电化教学 C.复式
用一级普通平板玻璃经风冷淬火法加工处理而成的是以下哪种玻璃?( )A.泡沫玻璃
患者,男性,60岁,高血压20余年,突发头痛、视矇、失语,测血压210/130m
左边给定的是多面体的外表面,右边哪一项能由它折叠而成?请把它找出来。 A.如上
下列关于集团审计中重要性的说法中,错误的是( )。 A.集团项目组需要在制定
(2017年真题)下列工程质量事故中,可由事故发生单位组织事故调查组的是( )。
最新回复
(
0
)