81.ThemarginalbenefitSusiegetsfrompurchasingathirdpairofglovesis
a.thesameasthetotalbenefitshegetsfrompurchasingthreepairsofgloves.
b.morethanthemarginalcostofpurchasingthethirdpairofgloves.
c.thetotalbenefitshegetsfrompurchasingthreepairsofglovesminusthetotalbenefitshegetsfrompurchasingtwopairsofgloves.
d.thetotalbenefitshegetsfrompurchasingfourpairsofglovesminusthetotalbenefitshegetsfrompurchasingthreepairsofgloves.
82.Arationaldecisionmakertakesanactionifandonlyif
a.theaveragebenefitoftheactionexceedstheaveragecost.
b.theaveragecostoftheactionexceedstheaveragebenefit.
c.themarginalbenefitoftheactionexceedsthemarginalcost.
d.themarginalcostoftheactionexceedsthemarginalbenefit.
83.Ashleyeatstwobananasduringaparticularday.Themarginalbenefitsheenjoysfromeatingthesecondbanana
a.canbethoughtofasthetotalbenefitAshleyenjoysbyeatingtwobananasminusthetotalbenefitshewouldhaveenjoyedbyeatingjustthefirstbanana.
b.determinesAshley’smarginalcostofthefirstandsecondbananas.
c.doesnotdependonhowmanybananasAshleyhasalreadyeaten.
d.cannotbedeterminedunlessweknowhowmuchshepaidforthebananas.
84.After much consideration, you have chosen Cancun over Ft. Lauderdale as your Spring Break destination this year. However, Spring Break is still months away, and you may reverse this decision. Which of the following events would prompt you to reverse this decision?
a.ThemarginalbenefitofgoingtoCancunincreases.
b.ThemarginalcostofgoingtoCancundecreases.
c.ThemarginalbenefitofgoingtoFt.Lauderdaledecreases.
d.ThemarginalcostofgoingtoFt.Lauderdaledecreases.
85.After much consideration, you have chosen Ireland over Spain for your Study Abroad program next year. However, the deadline for your final decision is still months away and you may reverse this decision. Which of the following events would prompt you to reverse this decision?
a.ThemarginalbenefitofgoingtoSpainincreases.
b.ThemarginalcostofgoingtoSpainincreases.
c.ThemarginalbenefitofgoingtoIrelandincreases.
d.ThemarginalcostofgoingtoIrelanddecreases.
86.Abarbercurrentlycutshairfor50clientsperweekandearnsaprofit.Heisconsideringexpandinghisoperationinordertoservemoreclients.Shouldheexpand?
a.Yes,becausecuttinghairisprofitable.
b.No,becausehemaynotbeabletosellmoreservices.
c.Itdependsonthemarginalcostofservingmoreclientsandthemarginalrevenuehewillearnfromservingmoreclients.
d.Itdependsontheaveragecostofservingmoreclientsandtheaveragerevenuehewillearnfromservingmoreclients.
87.TheGet-There-SafeBuscompanyincursanaveragecostof$45foreachpassengeritcarriesonitstripfromAtlantatoChattanooga.Inadvanceofaparticulartrip,fourseatsremainunsold.Thebuscompanycouldincreaseitsprofitonlyifit
a.chargedanyticketpriceabove$0forthefourremainingseats.
b.chargedatleast$11.25foreachofthefourremainingseats.
c.chargedatleast$45foreachofthefourremainingseats.
d.paidfourpeopletooccupythefourremainingseats.
88.Supposethecostofflyinga200-seatplaneforanairlineis$100,000andthereare10emptyseatsonaflight.Ifthemarginalcostofflyingapassengeris$200andastandbypassengeriswillingtopay$300,theairlineshould
a.selltheticketbecausethemarginalbenefitexceedsthemarginalcost.
b.selltheticketbecausethemarginalbenefitexceedstheaveragecost.
c.notselltheticketbecausethemarginalbenefitislessthanthemarginalcost.
d.notselltheticketbecausethemarginalbenefitislessthantheaveragecost.
89.Supposethecostofflyinga100-seatplaneforanairlineis$50,000andthereare10emptyseatsonaflight.Theaveragecostperseatis
a.$50.
b.$500.
c.$50,000.
d.This cannot be determined from the information given.
90.Supposethecostofflyinga100-seatplaneforanairlineis$50,000andthereare10emptyseatsonaflight.Themarginalcostofflyingapassengeris
a.$50.
b.$500.
c.$50,000.
d.This cannot be determined from the information given.
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