首页
登录
职称英语
The following data sufficiency problems consist of a question and two statements
The following data sufficiency problems consist of a question and two statements
游客
2024-01-14
54
管理
问题
The following data sufficiency problems consist of a question and two statements, labeled (1) and (2), in which certain data are given. You have to decide whether the data given in the statements are
sufficient
for answering the question. Using the data given in the statements
plus
your knowledge of mathematics and everyday facts (such as the number of days in July or the meaning of counterclockwise), you must indicate whether
A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D. EACH statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficient. [br] If a is an integer, is b an integer?
(1) The average (arithmetic mean) of a and b is an integer.
(2) The average (arithmetic mean) of a, b, and b+4 is a.
选项
答案
D
解析
alone is sufficient; the statement can be restated as (a+b)/2 is an integer; no non-integer divided by an integer--in this case, 2--is going to yield an integer, so a+b must be an integer, and therefore b must be an integer. (2) alone is sufficient; the statement can be restated as a+2b+4=3a, so b+2=a; we know that a is an integer, and any integer plus 2 is an integer, so b must be an integer.
转载请注明原文地址:https://tihaiku.com/zcyy/3360361.html
相关试题推荐
Studythefollowingcartooncarefullyandwriteanessayonit.Inyouressay,
InWesternculture,anengagementbeginswith"yes"toasimplequestion:"W
InWesternculture,anengagementbeginswith"yes"toasimplequestion:"W
InWesternculture,anengagementbeginswith"yes"toasimplequestion:"W
他每天必须处理许多问题。Hehastodealwithmanyproblemseveryday.
Whilebeingquestionedonthecourt,themandenied______theoldlady’snecklac
Thatstudent______hishandeverytimeIaskedaquestion.A、madeupB、putupC、r
______thelastone,Iansweredallthequestions.A、ExceptB、ExceptforC、Beside
Whatdoweknowfromthefirstparagraph?[br]Whichofthefollowingistrueac
Inmakingmarketinvestigation,oneshould______.[br]Whichofthefollowings
随机试题
Allcountrieshaveobviousincentivestolearnfrompastmistakes,butthose
ThestatetowhichtheMayflowersailedisA、Florida.B、Maine.C、Virginia.D、Mass
INeverThoughtItCouldHappentoMe
[originaltext]WhoisthemostimportantpersonintheUnitedStates?Someo
FindingYourExcellence:BecomingWhoYouAre1.Be【T1】【T1】______Giveefforta
Generallyspeaking,Collegegraduationbringsboththesatisfactionofacade
Therewere______forSaturday’smovie.A、notavailableB、noavailableticketsC、
关于容量保护电路,下列说法正确的是A.是一次性预置保护,对额定值内的多次累积性过
根据《城乡规划法》的规定,直接用于农业用地的是( )。A.耕地 B.林地
根据《标准施工招标文件》中通用条款规定,变更指示由()签发。A.监理人 B.发
最新回复
(
0
)