Numerical - Mixed Questions13Numerical Reasoning Practice 09

1，(1)答案： anumberofforeignendangeredbirdspecies 333650 * 0.04=26numberofukendangeredbirdspecies : * 0.04=10thedifferencebetweenthenumberofforeignandukendangeredbirdspecis :-10=16。(2)答案： binordertocationtheperatemalsofthetotalnoffortofftetotocationspecationtheperationage endengredforeignmals :05 * 780=3939/(780650320920)=0.0141%(3)答案： efortionamphibianspeciesthatareendangered :03 * 100=3。ukamphibianspeciesthatareendangered :05 * 40=2。thedifferencebetweenforeignandukendangeredamphibians :-2=1。forentinsectspeciesthatareendangered :15 * 920=138。ukinsectspeciesthatareendangered :12 * 850=102。thedifferencebetweenforeignandukendangeredinsectos 333138-102=36。therotionoftheifferentetheifferenteranduseredamphibianstoferentanduserenterrredinsectsis 33606036。(4)答案： d计算新百分比的步骤endonterpationallyendentocationtheprevenderrrepatilitysandadddthepreventionpationandadddthepreven8 newspecifiedoutof 320 foreign reptile * speciesinthetotalequals8/320=0. 025=2.5%现在添加的是correctanswer:%2.5%=12.5%，以使过去的百分比成为arrive2、(1)答案： curbanlandequaled 34.28 kmin 1990.inordertocompatetheperationofurbanlandwmustcompatethetotsizesofthelands aconfighwillllllichlybeuse hetotalsizesofthelandequals :285127.3449.38=245 km。Thus，thepercentageofurbanlandin 1990 equals :28/245=0.139914 %(2)答案： bforestwoodlandandlandwaterequalinsizeto :952.45=29.4 km22222222222222222222222222222222652Thus，theanswertothisquestionis :29.4/245=0.12=12 %(3)答案： d为森林伍德兰decereareaseinthesizeoflandallocated，owillsubtractthe 2010 data from the 1990 datainordertoavoidarrivinganegativepercentthepercentagechangebetween 1990和2010 inforestwoodlandsis : (29.38-26.95 )/29.38=2.43/29.38=0.08=8%(4)答案： atherelerativechangecanbecalculatedforeachtypeoflandusingthefollowingformula : (2010 size-1990 size )/(1990 size ) ) * 100 %.cinscewwwwanthegragetersallectrelectivechewhethechangeisanincreasordecrease willingoninorderannindordeterminewhichtityoff ative change.accordingtothepiecharts，therelectrectrechangareasfollowows :urban land : (56.35-34.28 )/34.28 * 100 %=64.382 %，I.e.urbanlandgotbiggerby 64.382 %。forest woodland : (26.95-29.38 )/29.38 * 100 %=-8.271 %，I.e.forestwoodlandgotsmallby 8.271 %。cropsbarefallow : (53.9-49 )/49 * 100 %=10 %，I.e.cropsbarefallowgotbiggerby 10 %。grassesroughgrazing : (105.35-127.34 )/127.34 * 100 %=-17.269 %，I.e.grassesroughgrazinggotsmallby 17.269 %。land water : (2.45-5 )/5 * 100 %=-51 %，i.e. Landwater got smaller by 51%Therefore，urbanlandexperiencethegreatestrelativechangewithanincreaseof 64.382 %3、(1)答案： bthesizeoflandtakenupbyroaddsidegrass :038 * 210=7.98 kmthesizeoflandtakenupbymunicipalforest :317 * 210=66.57 kmthedifferencebetweenthetwo :57-7.98=58.59公里(2)答案： d当前werinfortherrequetherequetomunsupthementillnessratesofboththes1ST and3rdquartilesacrossthe % ofexposuretogreenspace 33601stquartile:=63 rd品质： 2.9 2.421.7=9ratio is : 633609，whichcanbereductionto2:3(3)答案： a我正要接受这个问题在最初的neighbournehood中，他们以210公里的绿色空间33350/210=23.8%来表示titutticatinthefirstcategoriesof0- 24 %.titutticatingthementillinforthe1stqq222222222222222222220220000 thementiaturitinthesecortionthesecortyof 25-49 %.thementiallinfrentitionthementstquatititiThus，thedifferenceinmillnessrateis :3-1.3=1。(4)答案： b圣公主is1. 7我试图接受这个问题说wearethattheneighbournehoodisexposedtothreequarters (75 % )的ofthemunicipalsforest.sincethemunicipalsforestconstittes 31.7 % of the thenighbalfouldenjoyenjoystayto 31.7 % * 0.75=23.775 % of the绿色空间inthecity .In addition，theinengboralforedexposedtoanother 52k free space，whichconstitude 52/210=24.76 %绿色空间。Therefore，thenighbarofediseexposedstoamountof 23.775 $.76 %=48.535 %绿色空间。48.535 under the 25到49 e gory.thementillinstritionthethethethethquartitleinthiscategoryis3andtherateofthe1stquartilesis 1.3。Thus，thedifferenceinpreverentallinesofmentillinstethetwoquartilesis3-1.3=1. 74、(1)答案： dtotalirishpopulation :920，000930，000=1，850，000totaldeathrateacronspecationsofergenetogringspecementatheacperatementageofexposureaffectsonone-totalpo