A talent contest has 8 contestants. Judges must award prizes for first, second, and third places, with no ties. (a)In how many d

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问题 A talent contest has 8 contestants. Judges must award prizes for first, second, and third places, with no ties.
(a)In how many different ways can the judges award the 3 prizes?
(b)How many different groups of 3 people can get prizes?

选项

答案(a)336(b)56

解析

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本试题收录于： GRE QUANTITATIVE题库GRE分类

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A talent contest has 8 contestants. Judges must award prizes for first, second, and third places, with no ties. (a)In how many d

GRE QUANTITATIVE

GRE

Expertssuggestusingadifferentpasswordforeverywebsiteyouvisit,andchangingthepasswordeveryfewmonths.Ittakestro

Lifeasawomaninthecolonial(殖民的)Americaseemsquitedifferentfromitistoday.Womenwereconsideredinferiortomen,afac

Hehasbeencalledthe"missinglink."Half-man,half-beast.Heissupposedtoliveinthehighestmountainintheworld-

Morethan30,000driversandfrontseatpassengersarekilledorseriouslyinjuredeachyear.Atthespeedofonly30milesper

Thedriver______thepassengersoffatthesupermarketandthenwenttothenextstop.

I()onthedoorfortenminutesnowwithoutananswer.

Weallknowthatitispossibleforordinarypeopletomaketheirhomesontheequator,althoughoftentheymayfeeluncomfortab

Asmileisastrongsignofafriendlyandopenattitudeandawillingnesstocommunicate.Itisapositive,silentsignsentwi

DoesthelineLpassquadrantIV？(1)TheslopeofLisnegative.(2)y-interceptoflineLis-5.

Byexaminingfossilizedbeetles,aresearchteamhasproducedthemostdetaileddescriptionyetoftemperaturesinBritainover

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