MATH28.docx
- 文档编号:3194894
- 上传时间:2022-11-20
- 格式:DOCX
- 页数:17
- 大小:38.47KB
MATH28.docx
《MATH28.docx》由会员分享,可在线阅读,更多相关《MATH28.docx(17页珍藏版)》请在冰豆网上搜索。
MATH28
----------------------------------------------------------------------------------------------------------------------
Q1:
ThepopulationofCityXis50percentofthepopulationofCityY.ThepopulationofCityXiswhatpercentofthetotalpopulationofCityXandCityY?
A.25%
B.(331/3)%
C.40%
D.50%
E.(662/3)%
Answer:
----------------------------------------------------------------------------------------------------------------------
Q2:
Whatisthegreatestprimefactorof2100-296?
A.2
B.3
C.5
D.7
E.11
Answer:
----------------------------------------------------------------------------------------------------------------------
Q3:
Howmanylitersofapplejuicewereaddedtothecranberryjuiceinacertaincontainer?
(1)Theamountofapplejuicethatwasaddedwas3/2theamountofcranberryjuiceinthecontainer.
(2)Therewere5litersofcranberryjuiceinthecontainer.
A.Statement
(1)ALONEissufficient,butstatement
(2)aloneisnotsufficient.
B.Statement
(2)ALONEissufficient,butstatement
(1)aloneisnotsufficient.
C.BOTHstatementsTOGETHERaresufficient,butNEITHERstatementALONEissufficient.
D.EACHstatementALONEissufficient.
E.Statements
(1)and
(2)TOGETHERareNOTsufficient.
Answer:
----------------------------------------------------------------------------------------------------------------------
Q4:
Inademographicstudy,thepopulationandtotalincomeofacertainregionwereestimatedfromotherdata,andbothestimateshadlowerandupperlimits.Atthetimeoftheestimates,wasthepercapitaincomefortheregiongreaterthan$16,500?
(1)Thelowerlimitfortheestimateofthepopulationwas330,000people.
(2)Thelowerlimitfortheestimateofthetotalincomewas$5,500,000,000.
A.Statement
(1)ALONEissufficient,butstatement
(2)aloneisnotsufficient.
B.Statement
(2)ALONEissufficient,butstatement
(1)aloneisnotsufficient.
C.BOTHstatementsTOGETHERaresufficient,butNEITHERstatementALONEissufficient.
D.EACHstatementALONEissufficient.
E.Statements
(1)and
(2)TOGETHERareNOTsufficient.
Answer:
----------------------------------------------------------------------------------------------------------------------
Q5:
Isx<1?
(1)x+1=2x-1
(2)x-3≠0
A.Statement
(1)ALONEissufficient,butstatement
(2)aloneisnotsufficient.
B.Statement
(2)ALONEissufficient,butstatement
(1)aloneisnotsufficient.
C.BOTHstatementsTOGETHERaresufficient,butNEITHERstatementALONEissufficient.
D.EACHstatementALONEissufficient.
E.Statements
(1)and
(2)TOGETHERareNOTsufficient.
Answer:
----------------------------------------------------------------------------------------------------------------------
Q6:
Aboxcontains10lightbulbs,fewerthanhalfofwhicharedefective.Twobulbsaretobedrawnsimultaneouslyfromthebox.Ifnofthebulbsinboxaredefective,whatisthevalueofn?
(1)Theprobabilitythatthetwobulbstobedrawnwillbedefectiveis1/15.
(2)Theprobabilitythatoneofthebulbstobedrawnwillbedefectiveandtheotherwillnotbedefectiveis7/15.
A.Statement
(1)ALONEissufficient,butstatement
(2)aloneisnotsufficient.
B.Statement
(2)ALONEissufficient,butstatement
(1)aloneisnotsufficient.
C.BOTHstatementsTOGETHERaresufficient,butNEITHERstatementALONEissufficient.
D.EACHstatementALONEissufficient.
E.Statements
(1)and
(2)TOGETHERareNOTsufficient.
Answer:
----------------------------------------------------------------------------------------------------------------------
Q7:
Thereare11womenand9meninacertainclub.Iftheclubistoselectacommitteeof2womenand2men,howmanydifferentsuchcommitteesarepossible?
A.120
B.720
C.1,060
D.1,520
E.1,980
Answer:
----------------------------------------------------------------------------------------------------------------------
Q8:
B
AC
Inthefigureshown,thetriangleisinscribedinthesemicircle.IfthelengthoflinesegmentABis8andthelengthoflinesegmentBCis6,whatisthelengthofarcABC?
A.15
B.12
C.10
D.7
E.5
Answer:
----------------------------------------------------------------------------------------------------------------------
Q9:
If5x=2yandxy≠0,theniswhatpercentofy?
A.2%
B.4%
C.10%
D.40%
E.50%
Answer:
----------------------------------------------------------------------------------------------------------------------
Q10:
Sixcardsnumberedfrom1to6areplacedinanemptybowl.Firstonecardisdrawnandthenputbackintothebowl;thenasecondcardisdrawn.Ifthecardsaredrawnatrandomandifthesumofthenumbersonthecardsis8,whatistheprobabilitythatoneofthetwocards
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- MATH28