GRE数学复习典型例题分析_钢格板

算术也是GRE数学的重头戏之一，要复习GRE数学的算术类，不妨从下面的的典型例题开始吧。

1.AtCollegeCtherearefrom2to4introductoryphilosophyclasseseachsemester,andeachoftheseclasseshasfrom20to30studentsenrolled.Ifonesemester10per水泥制品centofthestudentsenrolledinintroductoryphilosophyfailed,whatisthegreatestpossiblenumberwhofailed?

A.12

B.10

C.8

D.6

E.3

答案：A

2.Ineachoftheyears1983and1984,thetotalnumberofautomobilessoldintheUnitedStateswas1.2millionmorethaninthepreviousyear.

percentincreaseinthenumberofautomobilessoldin1983over1982

percentincreaseinthenumberofautomobilessoldin1984over1983

答案：A

3.Aschooldistricthas1989computers,whichisapproximatelyonecomputerforevery68.6students.Ofthefollowing,whichistheclosestapproximation,inthousands,ofthenumberofstudentsintheschooldistrict?

A.30

B.120

C.140

D.160

E.200

答案：C

4.Ifthesumoffiveconsecutiveevenintegersis70,whatisthevalueofthegreatestofthefiveintegers.

A.12

B.14

C.18

D.20

E.22

答案：C

5.Thesumofthefirst50positiveintegersis1275.Whatisthesumoftheintegersfrom51to100,inclusive?

A.2525

B.2550

C.325

D.3775

E.5050

答案：D

6.Thenumbersinatablearearrangedin10rowsand4columnssuchthatonenumberisplacedattheintersectionofeachrowandcolumn.Howmanynumbersarecontainedinthetable、

A.14

B.40

C.400

D.104

E.410

答案：B

7.Inhowmanyoftheintegersbetween1and100doesthedigit5occurexactlyonce?

A.10

B.18

C.19

D.20

E.21

答案：B

8.Ifnisanyprimenumbergreaterthan2,whichofthefollowingcannotbeaprimenumber?

A.n4

B.n3

C.n1

D.n+2

E.n+5

答案：E

9.Iftherangeofthesixmeasurements140,125,180,110,165,andxis80,whichofthefollowingcouldbethevalueofx?

A.60

B.85

C.190

<徽章p>D.220

E.245

答案:C

10.The10householdsonacertainstreeth痱子粉avehouseholdincomesthatrangefrom$34,000to$150,000andanaverage(arithmeticmean)householdincomeof$60,000.Ifthehouseholdwiththehighestincomeandtheonewiththelowestincomeareexcluded.Whatistheaveragehouseholdincomefortheremaining8households?

A.$41,600

B.$47,0锰铁00

C.$52,000

D.$61,000

E.$75,000

答案：C