首页
登录
职称英语
If x is a positive, single-digit integer such that 4x/3,2x, x, and x+2, and 3x-2
If x is a positive, single-digit integer such that 4x/3,2x, x, and x+2, and 3x-2
游客
2024-01-14
32
管理
问题
If x is a positive, single-digit integer such that 4x/3,2x, x, and x+2, and 3x-2 form a non-ordered list of consecutive integers, which of the following could be the median of that list?
选项
A、3
B、4
C、5
D、6
E、8
答案
C
解析
Since there are only nine single-digit, positive integers, and not all of them will yield integers when we use them in these algebraic expressions, let’s start with trying to find a value for x that will give us a list of consecutive integers. I won’t work, since 4/3×1 is not an integer. Same with 2. When we use 3, though, we get 4/3×3=4; that’s an integer. The other expressions give us 2×3=6, 3, 3+2=5, and 3×3-2=7. So our group includes 4, 6, 3, 5, and 7. They aren’t in order, but they don’t have to be according to the problem, and they are consecutive. But be careful! The problem asks for the median of the list, not the value of x. The median of the list 3, 4, 5, 6, 7 is 5.
转载请注明原文地址:https://tihaiku.com/zcyy/3360528.html
相关试题推荐
InmanywaystheInternethashadaverypositiveeffectonsociety.Ithas
Whichofthefollowingisequaltothecubeofanon-integer?A、-64B、-1C、8D、9
Howmanydifferentpositiveintegersarefactorsof342?A、9B、11C、12D、20E、22
Whatisthesmallestintegerkforwhich64k>414?A、4B、5C、6D、7E、8BIfwedon
Ifxisapositive,single-digitintegersuchthat4x/3,2x,x,andx+2,and3x-2
Ifrisnegativeandsispositive,whichofthefollowingmustbenegative?A、|r
Thesquarerootof800isbetweenwhichofthefollowingintegers?A、21and25B、
Whichofthefollowingisequaltox24forallpositivevaluesofx?A、x12+x12B、
Foranynumberswandz,w·z=w3z(8-w2).Ifbothzandw·zarepositivenumbers,
If[img]2011q3/ct_egmatqm_egmatqchoose_0381_201121[/img]forallintegersxand
随机试题
EAGLE:TALON::A、person:footB、sheep:hornC、crab:pincerD、serpent:fangE、rattler
HowtoBeanExpertI.Backgroundinformationaboutthe
PASSAGETWO[br]Whatcanwelearnfromthelastparagraph?Newtechnologieshelp
[originaltext]M:Areyougoingtothedemonstrationtohelpstopthespreadof
Atthemomentsheis_________thevolleyballmatchbetweentheJapaneseteamand
水泥混合砂浆的强度等级可以分为()A.M5 B.M7.5 C.M10 D
项目质量管理由()组成,是项目管理的重要组成部分,包括确定质量政策、目标与职责
三腔二囊管压迫止血的部位是A、胃体部 B、胃底贲门部 C、胃大弯 D、胃窦
(2016年真题)可拮抗华法林凝血作用的药品是A.亚叶酸钙 B.维生素B6
某地铁盾构工作井,平面尺寸为18.6m×18.8m,深28m,位于砂性土、卵石地
最新回复
(
0
)