首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Compare Quantity A and Quantity B, using additional information centered above the two quantities if such information is given,
Compare Quantity A and Quantity B, using additional information centered above the two quantities if such information is given,
admin
2015-03-24
45
问题
Compare Quantity A and Quantity B, using additional information centered above the two quantities if such information is given, and select one of the following four answer choices:
(A)Quantity A is greater.
(B)Quantity B is greater.
(C)The two quantities are equal.
(D)The relationship cannot be determined from the information given.
A symbol that appears more than once in a question has the same meaning throughout the question.
r and t are consecutive integers and p = r
2
+t.
Quantity A Quantity B
(-1)
p
-1
选项
答案
C
解析
Recall that
Since p = r
2
+ t, the value of(-1)
p
depends on whether r
2
+ t is odd or even.
If r is an odd integer, then r
2
is an odd integer and, since r and t are consecutive integers, t is an even integer. In this case, p is the sum of an odd integer and an even integer and is therefore an odd integer.
Similarly, if r is an even integer, then r
2
is an even integer and t is an odd integer. In this case, p is the sum of an even integer and an odd integer and is therefore an odd integer.
In both cases, p is an odd integer. It follows that(—1)
p
= -1, and the correct answer is Choice C.
This explanation uses the following strategies.
Strategy 1: Translate from Words to an Arithmetic or Algebraic Representation
Strategy 11: Divide into Cases
转载请注明原文地址:https://kaotiyun.com/show/QwkO777K
本试题收录于:
GRE QUANTITATIVE题库GRE分类
0
GRE QUANTITATIVE
GRE
相关试题推荐
RowanTorrezwillneverbeabletobearhislate(已故的)fathertellhimthatheloveshim,butyesterdayhe【C1】______receivedhisd
Caraccidentskillmorethanonemillionpeopleandinjureapproximately50millioneachyear.【C1】______,millionsoffishcans
AsTheplanecircledovertheairport,everyonesensedthatsomethingwaswrong.Theplanewasmovingunsteadilythroughtheair
(77)Muchunfriendlyfeelingtowardscomputershasbeenbasedonthefearofwidespreadunemploymentresultingfromtheirintrodu
Thesecourses,ifproperlyconducted,will______themindsofthestudents.
Weshouldalwaysbearinmindthat______decisionsoftenresultinseriousconsequences.
Weallknowthatitispossibleforordinarypeopletomaketheirhomesontheequator,althoughoftentheymayfeeluncomfortab
Ifaninvestmenthasproducednoprofit,taxreliefpredicatedonhavingmadetheinvestmentisnohelp;anycorporatemanagerw
Acertainrectanglehasperimeter54.Iftheratioofthelengthoftherectangletothewidthis5to4,whatisthelengthof
随机试题
Theangrywomansatinthestationoffice."Therailwayshouldpayme$12."ShesaidtoHarry,themanwho【21】theticket."Myti
A.剧烈胸痛,大汗淋漓B.吞咽困难,咽异物感C.剧烈咳嗽,呼吸不畅D.烦躁不安,心慌气短E.吞咽困难,疼痛加重食管异物最主要的症状是
正常妊娠在耻骨联合上方能触到宫底时是妊娠的
黄芪的气味是( )。
《社会消防技术服务管理规定》规定,资质证书有效期届满需要续期的,应当在有效期届满()前向原许可公安机关消防机构提出申请。
当注册会计师识别出存在应付关联方的款项时,应该实施的审计程序有()。
在Excel工作表中,若向单元格中输入“03/4”,则在编辑框中显示出的数据应该是()。
1.世界经济的迅猛发展带来了诸如资源短缺、环境污染、臭氧层被破坏、全球气候变暖、生态失衡等一系列世界性的环境恶化问题。同时,随之而来的环境污染对食物的危害,使人们认识到环境污染、自然生态系统失衡,最终将危及人类自身的生存和发展。许多国际环境公约对以往国际贸
我国国有企业改革的方向是()。
设级数收敛,则必收敛的级数为()
最新回复
(
0
)