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
2017-10-16
59
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.
选项
答案
D
解析
Set up the initial comparison:
The comparison cannot be simplified any further. Although you are given that w>l, you still dont know how w compares to 9/5, or 1.8. For example, if w= 1.5, then w < 1.8, but if w = 2, then w > 1.8. In other words, the relationship between w and 9/5 cannot be determined.
Note that each of these simplification steps is reversible, so in reverse order, each simplification step implies that the relationship cannot be determined in the preceding comparison. Thus the relationship between Quantities A and B cannot be determined.
The correct answer is Choice D, the relationship cannot be determined from the information given.
This explanation uses the following strategies.
Strategy 5: Simplify an Arithmetic or Algebraic Representation
Strategy 13: Determine Whether a Conclusion Follows from the Information Given
The strategy of simplifying the comparison works most efficiently when you note that a simplification step is reversible while actually taking the step. Here are some common steps that are always reversible:
Adding any number or expression to both sides of a comparison
Subtracting any number or expression from both sides
Multiplying both sides by any nonzero number or expression
Dividing both sides by any nonzero number or expression
Remember that if the relationship is an inequality, multiplying or dividing both sides by any negative number or expression will yield the opposite inequality. Be aware that some common operations like squaring both sides are generally not reversible and may require further analysis using other information given in the question in order to justify reversing such steps.
转载请注明原文地址:https://kaotiyun.com/show/hgkO777K
本试题收录于:
GRE QUANTITATIVE题库GRE分类
0
GRE QUANTITATIVE
GRE
相关试题推荐
WehavequiteabitofinformationaboutancientEgyptianmedicine.Doctors’instructionshavebeenfoundtotellus【56】theydid
WehavequiteabitofinformationaboutancientEgyptianmedicine.Doctors’instructionshavebeenfoundtotellus【56】theydid
Ourpreferencesforcertaincolorsare______accordingtothepassage.Whichofthefollowingcouldbethemostsuitabletitle
Ourpreferencesforcertaincolorsare______accordingtothepassage.WhichofthefollowingstatementsisTRUEaccordingto
Ourpreferencesforcertaincolorsare______accordingtothepassage.WhichofthefollowingstatementsisNOTtrueaccording
In1863,AbrahamLincolnwas______.WhichofthefollowingstatementsisNOTtrueaccordingtothepassage?
SpeakerA:IsentapackagetoDallastwodaysagoanditstillhasn’tarrived.Mytrackingnumberis641-24.SpeakerB:OK,Mr
Thespeed______is340meterspersecond.
Packagingisaveryimportantformofadvertising.Apackagecansometimesmotivatepeopletobuyproducts.Forexample,alittl
Inthefigureabove,whatisthevalueof2s-r?
随机试题
关于支原体肺炎,下列描述哪项正确
肺结核的X线表现
胸痹重证,阴寒极盛者,其治法是
女,38岁。突发心悸伴烦躁和胸闷30分钟,四肢发凉,曾出现黑嚎,收入急诊监护病房。查体:BP70/50mmHg,心率180次/分,心律绝对不齐,心音强弱不等,心脏各瓣膜区未闻及杂音。心电图提示“预激综合征伴心房颤动”。在诊疗过程中,该患者突然意识丧失,
怎样做好质检员的工作?
下列结论中正确的是:
我国社会主义初级阶段的基本经济制度确立的依据是
CillianShepardistoannounceareviewofexaminationstandardstodayascontroversysurroundinguniversityentranceprocedures
Socialchangeismorelikelytooccurinsocietieswherethereisamixtureofdifferentkindsofpeoplethaninsocietieswhere
DriversontheBasingstokeby-passusedtohavetheirattentiondivertedbyasignthatreadAMOMENT’SINATTENTIONCAUSESACCI
最新回复
(
0
)