When the even integer n is divided by 7, the remainder is 5, then what is the re

游客2024-01-12 22

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。

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When the even integer n is divided by 7, the remainder is 5, then what is the re

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

Duringrecentyearswehaveheardmuchabout"race":howthisracedoescert

A.comfortableB.preferC.investmentD.academically

Helenisn’therebecauseIforgot(telephone)______her.totelephone本题考查不定式。forge

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TheOlympicGames,______in776B.C.,didnotincludewomenplayersuntil1912.

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[originaltext]W:Thankyou,thankyouandwelcometoeveryone’sfavoritegames

发端发送纠错码，收端译码器自动发现并纠正错误，传输方式为单向传输，这种差错控制的

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