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t-.clitr"rrar Griclar :iri | .,\lrl i,rr.tilt l, D : 2 c + I , c> \ , c = r d + l , d > 1 ( 6 p ) demaisusobtinem:,=4d + 3, a - 8d+ 7 iardeaici Din relaliile + + (2d 1Y (4d + 3) + (8d +'7) = 2021,(4p) ceeace este d echivalent cu l5d + tl = 2021,de undel5d = 2010$i d = 134, = (3p)Dinoficiu2p. c 269,b:539 Sia: 1079. Subi€ctulIl Notam cu C, L, G numarul de portocalepe care le au Cttilin, Cabriel.Vomavearelaliile: Lucian,respectiv. C+ L + G : 2 9 ; L : 3 C ; C < G < L . ( 3 p ) Tinendconl de cel€tlei relalii obtin€mce 9C > 29 ii 5C < 29, (4P) deundeoblinemce C = 4 sauC-5. C = 4 implicaL - 12$i c = 13,fals.(2p) ll
DacnC = 5 aturci L = i5 $i G = 9, deci Cntelinare 5 porrocale, Lucianare15 portocaleSiGabrielare9 portocal€. (4p)Din oficiu2p. Rezolvarea a Il-a
valorile incercaricu luiC. tJp) C +L + G > C +3C + G impfice4C +c 2.r+4 oi iaral treilea au avutla inceput:d=40oi; b=48oi; +9.x=90>r-l0oi. Ciobanii . =56oi. 5. Un sfertdin pretulobiectuhise noteazacu.! li atuncidaci arer lei aven relalia:a+2x=b+3x=4x..> Dan ared lei fi Bogdan .+a=lr.h-x. Cun z+r=11400 > 3t=11400-r=3800 lei are lei.Obiectulcosti 76002=15200lei Bogdan tiDanare2r=1800.2=7600 I-
. ,
Test36 =37.+3y+.=J7-2s:a I. x.(25+3y+2)=37.>x = | ri 25+3y+z .:>3t+z=12:a)=0,2=l2ti vadantele l,=l,r=9 sa\ y=2,2=6 s tr r=3,r=3 sauy=4,2-0.2 Da.5Alin ar€numaijumatakdin pr€(l €ste$ suma cE$una lui este390:2= 195 leigi ac€asta mingiiinseanmn la cei tr€i priet€ni le;. EI lmpruntuta de pe careo impnnnutl.adica195 sumereprezentatede numereconsecutiveadica d€ci suna esteacoperita astfel: = 192 n=192:3..>n=64 lei. +3= 195.+3n n+n+1+n+2= 195:+3n Aceastnsuml a lmprumutat-od€ la Radudar-stiamca i-a dat o tr€imedin baniisAi.+ Raduare 64 3 = 192lei.De la Mihaia imprunutat65 lei care are 65. 5 = 325 lei. o cincimedin sumasa. M reprezintn 'hai o doimedin 66 de lei ceeace .eprezinta Iar de la Bogdana imprumutat suma sa.> Bogdanare 66 2=132 lei. 3. O minge costi x ]ei e cn20 deninei vor costa20j = 180+f .20r + > r = 9+] r. inseamra 4'4 + 20.r= 180+5x 15x= I80>.! = 180:l5 >-! =i2lei cost; o tninge. 250-240=10lei. lei-D€cieuprim€screst =20demingicosti240 oi sunr b=a+8i +b=c-8..> 4.C€iaeiciobani au 4,b,, tirelatiile c = b+8.:t c = a+16 . Din acesterelatiirezultAcAnotandun sfertdin ciobancu r ciobaniiau: d=4r; ,=4I+8; c=4r+16. oile prirnului venznrile, ciobaniimai au:prnnul 3t oi; al doilea Dupi ce se ef€ctueaz! 14
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Test38 L August,Septenrbrie. 2. l0lei 3. 13t2. deanifiul,20deanifiica4.60deanitatdl,40 l5leignina. 5. 35deleicurcanul, 6.40 dc paginicu text,II9 dcscn€. 7. 13,26,39.
Bibliogra{ie Agrici Rodica.Agrici Mihai- ..Matenatica.losici ti perspic&itate , Exercitii ri ptobletrepeDt u preg i.e srplituenhrr.clarel€I-lV.la$. 1996 2. Avirvdrci v.. B n&a A. - !4titdelici clasa a lt'-a. .4t6iliat la hanualele a1&/,ahe Editun Taidr.Iati. 2007 3. BAlAucA,Artur qi colabo@torii,Matehtaticd.Tektepektr| actititdli optiohale, clarelcV-VIIL EdilulaTaida.Iaji. 2006 4. Budeanu 4.. CrigoratJ, - Co\cuntl de datenaticA C,. Nechifor1..Pdduraru .,Fl@ica T. CA,'par". Elittta Taida.Iati. 2005 5, CanpanFlorica L- ,.Cumau rpdrul numerel€",EdiD.d Ion C.eangt.BDcuretti. 19121 6. CAn'par Florica T.- ..A doua c.rte cu problemccelebre'. IXnDra Albatros. Bu@rerti-I 972: 7 CAmpatr forjca T.-..Printrelinii si sup.ailte. DdiluEIoDCleoga Bucureiti, \973: 8. CAmpd Florica T. -..Din isoria calorvanrmere de seafA . Edilura Albalros. 1973: 9. CanpanFloricaT. -..Triunghiud.tri{nghiurisi iar trjloebiuri"-Editua Ion Cmngl.Bucuregi.1974: 10. C6hpar Florica T. - ..A reia cane cu prcblemecelebrcdir istoria m dk m ar ic.iiB n u ra A l b .n o sBu . c u e ti .l 9 ? 6 l l . CAnpanFloricaT. - -,Povestea numlruluin' EdilumAlbanos.Bucu.egi. 19771 Cd'npan Flonca T. - ..Yechi $ nou in malcmdica", Ediluh lon Cr€d95. Bocdre$i.l97E: t3. CdmpanFloricaT. - ..PoveniddesprenuDeremiicsbc. EdilxraAlbalrcs, Bucuresd.l98lr 14. CahpanFloricaT .- ,-Dela Prpiru$l lui Rhindla calcnlatotul elecaonic". fiditura Ion Creoga, 1982: 15. Cdnpanflorica T. -..De la ffoala lui Gheorghe Lu& la inslitulele tehnio.de azi . Fnituru Ion Crcanga.1983 t6. Cenpar FloricaT. - ..l,icur'ciidin adincuri".EdiluraAlbatoi Bucufegi. 1983: CdnpaqFloricaT. -.,Vdialc allicalii alc natcmalicii. EdiiuraIon Crcrn8d. BucureSlil6E4: 18 . Cdmpanllorica T- -..Povstiri cu propo4i'qi sinebil'. EdituraAlbrtros, Bucurc$i.1985; t 9, Campmt'loricaT. - ..Pov€stni desp.eproblemecelebre".EdnuraAlbdkos. 1967: l
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