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
38
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://kaotiyun.com/show/owkO777K
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
Caraccidentskillmorethanonemillionpeopleandinjureapproximately50millioneachyear.【C1】______,millionsoffishcans
Iamafraidthathisphonenumberhasslippedmy______forthemoment.
Allthefollowingcasesareon-the-jobsmokingexceptthat______.Inthesecondpartofthepassage,theauthorsuggestsbannin
Beforethewarbrokeout,manypeople()insafeplacespossessionstheycouldnottakewiththem.
Thesecourses,ifproperlyconducted,will______themindsofthestudents.
Forthispart,youareallowed20minutestowriteacompositionaboutlettersofapologies.Youshouldwriteinnolessthan10
Forthispart,youareallowed20minutestowritealettertoagoodfriendJohn,congratulatinghimonhisadmissiontoafamo
IfScotthasearnedxdollarsbyworking3daysaweekataconstantdailyrateforWweeks,whichofthefollowingrepresentsh
随机试题
发动机传统点火系低压断路,原因是_______。
判断“雇员”窗体中“城市”控件的值为“北京”的宏条件表达式为()
下述哪一种情况可不拍摄颅脑CT的骨窗
下列不属于胆色素的是
常用的口腔科器械消毒方法除了()
A公司2013年度发生了4000万元的广告费用,在发生时已计入当期损益,税法规定广告费支出不超过当年销售收入15%的部分,准予扣除;超过部分允许在以后年度税前扣除。2013年度A公司实现销售收入20000万元,会计利润为1000万元。A公司所得税税
心理社会治疗模式的理论假设核心包括()。
在操作系统中,对信号量S的P原语操作定义中,使进程进入相应等待队列等待的条件是(41)。
Stupendouspriceswerepaidinahistoricsaleof19th-and20th-centuryavant-gardepaintingscollectedoveralifetimebyJohn
Believeitornot,bluejeanshavebeenaroundforover130years.LeviStrausscreatedthefirstbluejeansas【B1】______forgol
最新回复
(
0
)