首页
登录
职称英语
If a and b are odd integers and a? b, which of the following equals to the numbe
If a and b are odd integers and a? b, which of the following equals to the numbe
游客
2024-01-12
21
管理
问题
If a and b are odd integers and a? b, which of the following equals to the number of even integers that are greater than a and less than b?
选项
A、(a-b-2) /2
B、(a-b-1)/2
C、(a-b)/2
D、a-b
E、a-b-1
答案
C
解析
在考场上,这道题目可以采用特殊值的方法,会比常规做法简便很多。题目中对a和b两个数的限制条件有两个,即二者均为奇数,且a>b。因此不妨代入两个奇数进行考查,设a=3,b=1,问题中所求的“大于a、小于b的偶数个数”在将a和b赋值后,可知1和3中间仅有2一个偶数;把a=3,b=1代入选项,发现有C和E两个选项都等于1,此时应换两个差距较大的数重新进行赋值;把a=5,b=1带入选项,此时1和5之间应该有2和4两个偶数;发现只有C选项等于2,此时答案便可以确定选C。
转载请注明原文地址:https://tihaiku.com/zcyy/3355178.html
相关试题推荐
Thefollowingdatasufficiencyproblemsconsistofaquestionandtwostatements
Thefollowingdatasufficiencyproblemsconsistofaquestionandtwostatements
Thefollowingdatasufficiencyproblemsconsistofaquestionandtwostatements
Whichofthefollowingistheclosestapproximationof[img]2011q3/ct_egmatqj_eg
Iffandgaredistinctprimenumberslessthan10,whichofthefollowingcanno
Howmanydifferentpositiveintegersarefactorsof342?A、9B、11C、12D、20E、22
If(x-1)2=144,whichofthefollowingcouldbethevalueof2x?A、-26B、-22C、-11
Thefollowingdatasufficiencyproblemsconsistofaquestionandtwostatements
Ifthesumoffiveconsecutiveoddintegersis5,whichofthefollowingcouldb
Thefollowingdatasufficiencyproblemsconsistofaquestionandtwostatements
随机试题
Theworld’sleadingclimatescientistshavesetoutindetailforthefirst
ThenewideaabouteducationintheU.S.isthat______.[br]Whichofthefollo
[originaltext]W:Janeissoobsessedwithcelebrities.Shespendshoursonthe
除走廊外需要设机械排烟的空间是:() A.前室、员工活动室 B.库房、
霍奇金病患者,横膈上下均有淋巴结肿大,脏器和骨髓均无侵犯,无临床症状,治疗方法首
牡丹皮、赤芍、紫草均能A.活血B.解毒C.滋阴D.透疹E.清肝
阅读下列材料,回答问题。 据教科院基础教育研究院的调查:80.9%的家
首席风险官应当按时参加( )组织或者认可的培训。A.公安部门 B.证券交易所
金瓷冠的金属基底冠由瓷覆盖的部位的厚度一般为A.0.Smm B.0.6mm
耙吸挖泥船开挖松散和中等密实砂宜选用的耙头是()。A.冲刷型耙头 B.挖掘型
最新回复
(
0
)