首页
登录
职称英语
Which of the following could be the sum of nine consecutive integers?A、29B、46C
Which of the following could be the sum of nine consecutive integers?A、29B、46C
游客
2025-02-23
8
管理
问题
Which of the following could be the sum of nine consecutive integers?
选项
A、29
B、46
C、57
D、99
E、100
答案
D
解析
设9个连续整数分别为月,n+1,n+2,…,n+8。根据等差数列求这9个数的和:n+n+1+n+2+…+n+8=(n+n+8×9)/2=9(n+4),得出任意9个连续整数的和必然是9的倍数。选项中只有99是9的倍数,所以选择D选项。
转载请注明原文地址:https://tihaiku.com/zcyy/3969800.html
相关试题推荐
Ifnandmarepositiveintegersandmisafactorof35,whatisthegreatestp
xandyareintegerssuchthat0<y<x.H=100x+10x+4G=100y+10y+2M=(H−G)(H+
Questionsarebasedonthefollowingdata.[img]2022m10s/ct_ve01203002j_egreqtbz
Questionsarebasedonthefollowingdata.[img]2022m10s/ct_ve01203002j_egreqtbz
Question(1)and(2)arebasedonthefollowingdata.[img]2022m10s/ct_ve0120300
0<k<n<k+2.Whichofthefollowingstatementsmustbetrue?(Ⅰ)Ifnisanintege
s,t,anduareintegers,and10≤s<t<u≤20QuantityA:s+t/uQuantityB:11A、Quan
ListAcomposesofnconsecutivepositiveintegers.QuantityA:Theaverageofl
Questionsarebasedonthefollowingdata.[img]2022m10s/ct_ve01203002j_egreqtbz
Questionsarebasedonthefollowingdata.[img]2022m10s/ct_ve01203002j_egreqtbz
随机试题
Moreandmore,theoperationsof’ourbusinesses,governments,andfinancial
DoyouknowTim’sbrother?Heis______thanTim.(2005年考试真题)A、muchmoresportsman
Thisoldcoat(design)______foruseintherainonly,butIworeittokeepwa
创新是否成功以及在多大程度上成功,存在高度的不确定性,因而具有()。A.不可预
A.木香槟榔丸 B.保和丸 C.枳实导滞丸 D.枳实消痞丸 E.健脾丸饮
关于团体心理辅导,表述不正确的是()。A.团体心理辅导中,除班级心理辅导活动课
2019年6月下旬,价格按从高到低排列居于第六位的生产资料是:A.苯乙烯
投资项目初始现金流量的组成部分主要有( )。[2008年中级真题]A.固定资产
A.利用药物的阳离子(BH)与溴甲酚绿阴离子(In)结合成离子对进行测定B.样品
医疗机构施行特殊治疗时A、可以由本科在科主任主持下讨论决定施行 B、由医院决定
最新回复
(
0
)