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1、PP-DataSufficiency1(DS1)完整詳解版V1.2作者:larry.twHuangHsin-YiPendaEngedimauricewcharlie6989abc123sunnyblue13s備註：本版權(quán)內(nèi)容歸作者和論壇共有，嚴(yán)禁任何未經(jīng)允許的商業(yè)使用。RevisedHistory由於這是眾人一起完成的,難免會有疏失,希望大家可以一起修正錯誤,讓這份詳解變得更完整!版本增加規(guī)則如下:1)修正算式錯誤or提出更好的算法,請把版本小數(shù)+1(Ex:V1.0->V1.1)2)增加or補(bǔ)齊題目,請把版本個位數(shù)+1(Ex:V2.0->V3.0)版本修正內(nèi)容(請標(biāo)題號)作者日期V1.
2、0新增全部詳解(Q1~Q218)larry.twHuangHsin-YiPendaEngedimauricewcharlie6989abc123sunnyblue13s2008/7/1V1.1修正DS1-156,DS1-158,DS1-213,DS1-214,DS1-215,DS1-210,DS1-217larry.tw2008/7/13V1.2UpdateQ122,Q201,Q205,Q206larry.twPhilosophia2008/08/29PracticeTest#1DataSufficiency(218Questions)1.86-!-item-!-187;#058&00
3、0002Agardenstorepurchasedanumberofshovelsandanumberofrakes.Ifthecostofeachshovelwas$14andthecostofeachrakewas$9,whatwasthetotalcostoftheshovelsandrakespurchasedbythestore?(1)Theratioofthenumberofshovelstothenumberofrakespurchasedbythestorewas2to3.(2)Thetotalnumberofshovelsandrakespurchasedbythes
4、torewas50.--------------------------------------------------------------------------------------------------------------------------------------------------------【答案】C【思路】設(shè)Qs為shovels的數(shù)量設(shè)Qr為rakes的數(shù)量題目問:14Qs+9Qr=?(1)Qs=2a,Qr=3a,只知比例,不知各為多少,無法求得數(shù)量,不充分(2)Qs+Qr=50,只知總和,不知各為多少,也無法求數(shù)totalcost,不充分(1)+(2
5、)將(1)代入(2)可得a=10,即Qs=20,Qr=30,所以totalcost已經(jīng)可以算出,充分!--------------------------------------------------------------------------------------------------------------------------------------------------------2.142-!-item-!-187;#058&000140Ofthestudentswhoeatinacertaincafeteria,eachstudenteitherlikesor
6、dislikeslimabeansandeachstudenteitherlikesordislikesbrusselssprouts.Ofthesestudents,dislikelimabeans;andofthosewhodislikelimabeans,alsodislikebrusselssprouts.Howmanyofthestudentslikebrusselssproutsbutdislikelimabeans?(1)120studentseatinthecafeteria.(2)40ofthestudentslikelimabeans.---------------
7、-----------------------------------------------------------------------------------------------------------------------------------------【答案】D【思路】beans~beanssproutsab~sproutscdt註:~代表dislike設(shè)t為totalstudents設(shè)likebeans&likespro
