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
If j and k are even integers and j < k, which of the following equals the number of even integers that are greater than j and le
If j and k are even integers and j < k, which of the following equals the number of even integers that are greater than j and le
admin
2015-03-24
51
问题
If j and k are even integers and j < k, which of the following equals the number of even integers that are greater than j and less than k ?
选项
A、
B、
C、
D、k-j
E、k-j-1
答案
A
解析
Since j and k are even integers, it follows that k=j + 2n for some integer n. Consider the sequence of even integers from; to k.
j, j +(2)(1), j +(2)(2), j +(2)(3),..., j +(2)(n - 1), j + 2n
Note that there are n — 1 integers in the sequence between j and k, and these are the even integers greater than j and less than k. Therefore the answer is n - 1, but the answer must be given in terms of j and k. Since k=j + 2n, you have n =
and so
Thus the correct answer is Choice A.
This explanation uses the following strategies.
Strategy 5: Simplify an Arithmetic or Algebraic Representation
Strategy 8: Search for a Mathematical Relationship
转载请注明原文地址:https://jikaoti.com/ti/TPdYFFFM
本试题收录于:
GRE QUANTITATIVE题库GRE分类
0
GRE QUANTITATIVE
GRE
相关试题推荐
Somepeoplethinkoflifeasagame.Therearesimilaritiesbetweenlifeandgames;bothcanbeplayed,bothhaverules,andbot
Somepeoplethinkoflifeasagame.Therearesimilaritiesbetweenlifeandgames;bothcanbeplayed,bothhaverules,andbot
Manyschoolteacherssaythatasdifficultastheirstudentscanbetodealwith,parentscanbeevenworse.Someparentsarequi
Caraccidentskillmorethanonemillionpeopleandinjureapproximately50millioneachyear.【C1】______,millionsoffishcans
WehavequiteabitofinformationaboutancientEgyptianmedicine.Doctors’instructionshavebeenfoundtotellus【56】theydid
AsTheplanecircledovertheairport,everyonesensedthatsomethingwaswrong.Theplanewasmovingunsteadilythroughtheair
Thecityhasalwaysbeenanengineofintellectuallife,fromthe10-centurycafesofLondon,wherecitizensgatheredtodiscuss
Therearemanyolderpeopleintheworldandtherewillbemanymore.Alittle-knownfactisthatover60percentoftheolderp
Duringthelastthreedecades,thenumberofpeopleparticipatinginphysicalfitnessprograms______sharply.
Weshouldalwaysbearinmindthat______decisionsoftenresultinseriousconsequences.
随机试题
晶体有何特点?
女,34岁,腹痛、腹泻伴午后低热半年余,大便呈稀糊状,无粘液及脓血,不伴里急后重。体检:消瘦,体温37.9℃。心肺无明显异常。该患者进一步应选择哪项检查
用于Buerger病的诊断和检验疗效的特殊检查有
会计凭证传递是指从原始凭证的填制或取得时起,到会计凭证归档保管止,在单位内部有关部门和人员之间按规定的路线进行传递和处理的程序。()
下列关于银行汇票适用的范围的表述中,错误的是()
甲企业与乙企业签订协议约定共同投入到市场上商品的总量,以保持供不应求的局面。这种协议属于()。
商业银行资本构成中,附属资本包括()。
审美意象的本质特征是___________,表现特征是___________,形象特征是荒诞性,思维特征是___________的直接参与,鉴赏特征是求解性和多义性。
所谓依法从快,是指依照()的规定,在审理案件的时限以内迅速地审结案件。
下列设备组中,完全属于计算机输出设备的一组是()。
最新回复
(
0
)