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44 Time and Work Problems - Competition Gurukul

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44 Time and Work Problems - Competition Gurukul

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  1. CompetitionGurukul QuickReview Timeandwork Acandopieceofworkin30dayswhileBalonecandoitin40days. In 1. howmanydayscan Aand Bworkingtogetherdo it? (a)120 (b)40/7 (c)60 (d)171/7 AandBtogethercancompleteapieceofworkin35dayswhileAalonecan 2. completethesamework in 60 days. Balonewillbeableto completethesame working in howmanydays? (a)80 (b)45 (c)80 (d)84 3. Acandoapieceofworkin7daysof9horseeachandBcandoitin6daysof7hourseach.Howlongwilltheytaketodoit,workingtogether82/5hoursa day? (a)5 (b)4 (b)3 (d)8 4. Acandoapieceofworkin15daysandBalonecandoitin10days.B worksatitfor5daysand themleaves.Aalonecan finish theremaining in?(a)75/6 (b)71/7 (c)80 (d)75 Acando1/3oftheworkin5daysandBcando2/5oftheworkin10days 5. inhowmanydaysboth Aand Btoethercan do thework? (a)93/8 (b)15 (c)27 (d)45 Acandoapieceofworkin80days.Heworksatitfor10daysandthenB 6. alonefinishedtheremainingworkin42days.Thetwotogthercouldcompletethe work in howmanydays?

  2. CompetitionGurukul QuickReview (a)48 (b)15 (c)30 (d)45 AandBcantogetherfinishaworkin30days.Theyworkdatitfor20days 7. andthenBleft.Theremainingworkwasdoneby Aalonein20moredaysAalone can finish thework in ? (a)60 (b)22 (c)48 (d)25 AandBcandoapieceofworkin45daysand40daysrespectively.They 8. begantogotheworktogetherbutAleavesaftersomedaysandthanBcompletedthereaminnig workin23days. ThenumberodaysafterwhichAlefttheworkwas? (a)15 (b)45 (b)3 (d)9 AdoeshalfasmuchworkasBinthreefourthofthetime.Iftogetherthey 9. take18daystocompletethework,howmuchtimeshallBtaketodoit? (a)46 (b)15 (c)30 (d)45 Acan do acertain job in 12 days. Bis60%moreefficientthan A. Thenumberofdays,ittakesBtodothesamepieceofworkis? (a)15/2 (b)25 (c)28 (d)20 Acandoacertainjobin25dayswhichBalonecandoin20days. Astaredthework and wasjoined by Bafter10 days. Thenumberodaystkaneincompleting thework was? (a)68/3 (b)162/3 (c)48 (d)28/3

  3. CompetitionGurukul QuickReview 12. AistwiceasgoodaworkmanasBandtogetherthey finishapieceofworkin14daysThenumberofdaystaken byAaloneto finish thework.? (a)45 (b)21 (c)36 (d)49 AisthriceasgoodaworkmanasBandTakes10dayslesstodoapieceof work than Btakes.Balonecandothewhilework work in ? (a)15 (b)25 (b)3 0 (d)27/6 Acandoapieceworkin14dayswhichBcandoin21days. Theybeingtogetherbut3 daysthecompletion ofthework. Aleavesofthetotalnumberofdaysto completethework is? (a)175/6 (b)101/7 (c)101/5 (d)75 15. Iframesh,sureshandhairshcandoapieceofworkin15days,10daysand6 daysrespectively. Howlong willthey taketo do it, ifallthethreework it together? ( a)9 (b)03 (b)30 (d)15 16. AandBcandoapieceofworking72days:BandCanddoitin120days; Aand Ccandoitin90days.In whattimecanAalonedoit? (a)120 (b)150 (c)45 (d)125

  4. CompetitionGurukul QuickReview 17. AandBandCtogethercanfinishapieceofworkin4days:alonecandoit in12daysandBin18days,then Calonecandoitin ? (a)15 (b)65 (c)09 (d)14 AandBcandoapieceofworkin18days:BandCcandoitin24days:A andCcandoitin36days.Inhowmanydayscantheydoitallworkingtogether?(a)16 (b)42 (c)30 (d)90 AistwiceasgoodasworkmanasBandtogethertheycompleteaworkin 15days .inhowmanydayscan theworkbecompletebyBalone? (a)45 (b)25 (c)20 (d)28 45mencancompleteawokin16days.Sixdaysaftertheystartedworking 30 moremen joined them. Howmany dayswillthey nowtaketo completetheremainingwork? (a)16 (b)14 (b)6 (d)9 12mencancompleteaworkin18dayssixdaysaftertheystartedworkingmenjoinedthem.Howmanydayswillallofthemtogethercompletetheremainingwork? (a)15 (b)18 (b)03 (d)9 Twelvemen can completeawork in 8 days. Threedaysafterstarted the work3moremenjoined.Inhowmanydayswillallofthemtogethercompletethe

  5. CompetitionGurukul QuickReview remainingwork. (a)16 (b)04 (b)06 (d)09 23. A,Band Careemployed to do apieceofwork forRs.529. Aand Caresupposed to finish 19/23ofthework together.Howmuchshallbepaid to B? (a)15 (b)65 (c)09 (d)14 24. Ajobiscompletedby10menin20daysandby20womenin15days.Thedayswillittakefor5men and10women to finish thatwork? (d)171/7 (a)120 (b)40/7 (c)60 25.AandBcan doapieceofworkin5 days.BandCcan doitin 7days,Aand C candoitin4days.Whoamongthesewilltaketheleasttimeifputtodoitalone?(a)A (b)B (b)C (d)not possible AandBtake8days,BandC12days.A,BandCtake6days.AandC 26. take. (a)5 (b)4 (b)3 (d)8 27. Aand Btake12 days, Band C15 days, Cand A20 days. A, Band C togethertake. ( a)15 (b)03 (b)10 (d)25 28. AandBcan completeaworkin4days.Aalonetakes12days,in howmanydaysBalonecan completethework?

  6. CompetitionGurukul QuickReview (a)5 (b)3 (b)7 (d)6 29. 10menand15womentogethercancompleteaworkin6days.Ittakes100 daysforoneman aloneto completethesamework. Howmany dayswillberequired foronewoman aloneto completethesamework? ( a)225 (b)325 (b)215 (d)425 Xcandoin40days.Heworkedfor8daysandthenYfinisheditin16days.Howlong togethertaketo finish thework? (a)131/3 (b)104/7 (c)101/5 (d)175/3 Adoes4/5 ofthework in 20 days. Hethen callsin Band they togetherfinish theremainingwork in3 days. Howlong Balonetaketo finish thewhole work?½ (d)37½ (a)5 8 (b)42 (b)39 33. Atakes3daysandB2days.BothfinishedtheworkandgotRs.150.What istheshareofA? (a)45 (b)60 (c)09 (d)15 34. Acanlayrailwaytrackbetweengivenstationsin16daysandBcandothesamejobin 12days.WiththehelpofC,theydidthejobin4daysonly.Then,C alonecandothejob in : 1 2 3 a.9 days b.9 daysc.9 days d.10days 5 5 5

  7. CompetitionGurukul QuickReview 35.RonaldandElanareworkingonanassignment.Ronaldtakes6hourstotype32 pageson acomputer, whileElan takes5 hoursto type40 pages. Howmuchtimewillthey take, working togetheron two differentcomputersto typeanassignmentof110pages? a.7hours 30 minutes c.8 hours 15 minutes b.8hours d.8hours25minutes

  8. CompetitionGurukul QuickReview • AworkstwiceasfastasB.IfBcancompleteaworkin 12daysindependently,thenumberofdaysin which AandBcan togetherfinishthework is: • 4 daysb.6daysc.8daysd.18days • Sakshicandoapieceofworkin20days.Tanyais25%moreefficientthanSakshi.Thenumberofdaystaken byTanyatodothesamepieceofwork . • (a)15 (b)65 (c)09 (d)14

  9. CompetitionGurukul QuickReview a.15 38.Ais50%asefficientasB.CdoeshalfoftheworkdonebyAandBtogether.IfCalonedoesthework in40days,then A,Band Ctogethercandothework in: 1 3 a.13 days b.15 daysc.20 days d.30days • AandBcancompleteawork in15daysand 10 daysrespectively.Theystarteddoingtheworktogetherbutafter2daysBhadtoleaveandAalonecompletedtheremainingwork.Thewholework wascompleted in: • 8daysb.10daysc.12 daysd.15days • AandBcandoapieceofworkin30days,whileBandCcandothesame work in24daysand Cand Ain20day.Theyallwork togetherfor10dayswhen B and Cleave.HowmanydaysmorewillAtaketo finishthework? • 18 daysb.24daysc.30daysd.36days • A,BandCareemployedtodoapieceofworkforRs.529.AandBtogether 19 23 8 23 aresupposedtodo oftheworkandBandCtogether ofthework.What

  10. CompetitionGurukul QuickReview • amountshouldAbepaid? • a.Rs.315 b.Rs.345 c.Rs.355 d.Rs.375 • AandBtogethercancompleteaworkin12days.Aalonecancompleteitin20 days.IfBdoestheworkonlyforhalfadaydaily,then in howmanydaysAandBtogetherwillcompletethework? • 10daysb.11day c.15 daysd.20days • Twentywomencandoaworkinsixteendays.Sixteenmencancompletethesamework infifteen days. Whatistheratiobetween thecapacityofaman andwoman? • 3 : 4 b.4 :3 c.5 : 3 d.Datainadequate • 12mencancompleteapieceofworkin4days,while15womencancomplete thesameworkin4days.6menstartworkingonthejobandafterworkingfor2days, allofthemstopped working. Howmany women should beputon thejobcompletetheremaining work,ifitistobecompletedin3 days? • 15 b.18 c.22 d.Noneofthese 10 CompetitionGurukul,Janak Puri,MetroPillarNo.636|www.competitiongurukul.in

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