GMAT_IR_50题详解

IntegratedReasoningNEW!IR新题1IntegratedReasoning(50新题)IR新题21、2、IR新题34.5、IR新题4IR新题57、8、IR新题6文章：IR新题710.11、IR新题8文章：IR新题913、IR新题1014、16、IR新题1117、19.文章：IR新题1220、IR新题1321、IR新题1422、IR新题1523、IR新题1624、IR新题1725、25A.Theleastpossiblevalueforthemeanofthenumbersofhoursofexerdsereportedfortheweeksis25B.Thenumberofrespondentswhoexercisedonaveragelessthanone-halfhourperdayduringtheweeisbetween,inclusive.IR新题1826、ArecentcensusrevealedtheagedistributionoftheresidentsofTownY,showninthegraph,Sincethecensuswasperformed,noresidenthasmovedintoorawayfromTownYandtherehavebeennorecordedbirthsordeaths.Basedonthegiveninformation,usethedrop-downmenustomostaccuratelycompletethefollowingstatements.26A.Thecensusindicatesthattimesasmanyresidentswerechildrenorteenagersaswereseniors.26B.Ifatthetimeofthecensus,therewere540morepeopleaged0-39thanpeopleaged40orgreater,thenthepopulationofTownYatthetimeofthecensuswasIR新题1927、27A.Thebuildingwiththegreatestmeanheightperfloorhasaroofheightbetweenmeters.27B.Thereisacorrelationbetweenthenumberoffloorsandthemeanheightperfloor.IR新题2028、28A.Mediancarbondioxideemissionsforthe9countriesincreasedbymillionmetrictons2000to2009.28B.In2006,therangeofcarbondioxideemissionsforthe9countrieswasapproximatelymillionmetrictons.IR新题2129、Duringafour-dayperiod,aheightmeasurementandaweightmeasurementwererecordedshortlyafterdeliveryforeachbabyborninaparticularhospital.The19babiesinthestudyweredividedintotwogroups,GroupAandGroupB.Thechartshowsthelength,incentimeters(cm),andweight,inkilograms(kg),foreachofthe19babies.Basedonthegiveninformation,usethedrop-downmenustomostaccuratelycompletethefollowingstatements.29A.Thecorrelationbetweenlengthandweightforbabiesinthestudyis29B.Ifababywithweightlessthan3.5kgwereselectedatrandom,theprobabilitythatthebabywouldbeapartofGroupAisIR新题2230、In2010,therewerefourused-cardealersinCityZ.Thegraphicshowsthemonthlysalesdatafor2010fortwoofthosedealersaswellasthecitywideaverageforused-cardealersforthosemonths.Basedonthegiveninformation,usethedrop-downmenustomostaccuratelycompletethefollowingstatements.30A.ABCCarsandXYZAutomotiveaccountedforhalfofallused-carsalesinCityZfor2010.30BInJune2010,thetwoused-cardealersthatarenotspecifiedonthegraphsoldatotalofexactlycars.IR新题2331、ThegraphshowsthetotalnumberofInternetusersandthetotalpopulationworldwideforeachoftheyears2000-2010.Fromeachdrop-downmenu,selecttheoptionthatcreatesthemostaccuratestatementbasedontheinformationprovided.31A.ThepercentincreaseinthetotalnumberofInternetusersfrom2002to2007wasapproximately%.31B.ThenumberofInternetusersper100peopleincreasedbyapproximatelyfrom2000to2010.IR新题2432、OnDays1through4ofarecentweek,ProductXwasoutofstockatRetailerR.Day1shoppersarethoseshopperswhocametoRetailerRonDay1ofthatweekseekingProductX.Foreachofthefirst3daysofthatweek,thegraphshowsthesubsequentbehaviorofallDay1shopperswhocametoRetailerRseekingProductXonthatday.ShoppersatRetailerRwhopurchasedadifferentiteminlieuofProductXpaidanaverageof30%morefortheitem.Fromeachdrop-downmenu,selecttheoptionthatcreatesthemostaccuratestatementbasedoninformationprovided.32A.%ofDay1shoppersreturnedtothestoreonDay3.32B.ShoppersatRetailerRwhopurchasedsubstituteitemsfromothermanufacturersonDay1paidatotalamountthatwasapproximatelyofthetotalallDay1shopperswouldhavepaidhadeachofthembeenabletopurchaseProductXonDay1.IR新题2533、Thegraphdepictstheper-persondietaryintakeoffoodsin4categoriesforthepeopleofNationXfortheyears1909through2000.Adeclineinconsumptioninall4categoriesstronglysuggestsanoverallfoodshortageratherthanasimplechangeindietarypattern.Fromeachdrop-downmenu,selecttheoptionthatcreatesthemostaccuratestatementaboutfoodconsumptioninNationXbasedontheinformationprovided.33A.ThegraphsuggeststhatNationXmostlikelyexperiencedafoodshortageshortlybeforetheyear.33B.Fortheyearthatthetotaldietaryintakeofcarbohydrateswaslowest,theper-personintakeofcarbohydrateswasapproximatelytimestheper-personintakeofdietaryfiber.IR新题2634、Thegraphshowstheestimatedyear-endpopulationforthe3mostpopulousterritoriesinNationXin5selectedyears.Theestimatedyear-endpopulationofNationXwas17,000,000in1990and22,500,000in2010.Fromeachdrop-downmenu,selecttheoptionthatcreatesthemostaccuratestatementbasedontheinformationprovided.34A.Theincreaseintheestimatedyear-endpopulationofTerritoryCfrom1990to2010accountsforapproximately%oftheincreaseintheestimatedyear-endpopulationofNationXoverthesameperiod.34B.In2010,theestimatedtotalyear-endpopulationofthe3territorieswasoftheestimatedyear-endpopulationofNationX.35.Rockvarnishistypicallyrichinironandmanganese,withthepresenceofmanganeseduetobacteriaonthesurfaceoftherock.Becausethebacteriawouldnotsurviveonthesurfaceofrocksinthecolder,continuouslyfrozen,reachesofAntarctica,scientistswerenotsurprisedtodiscoverthatrockvarnishintheThielMountainsareaofAntarcticaconsistsonlyoflimonite,aformofoxidizediron.Thishadpenetratedfromthesurfacesoftherocksintothecracks.However,althoughmoistureisessentialtothemovementoflimonite,snowhasnotmeltedinIR新题27theThielMountainsinrecenttimes.Indicatewhichstatementinth