gmat考试problem solving复习资料

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1、PP-ProblemSolving1(PS1)完整詳解版V2.0PracticeTest#1ProblemSolving(196Questions)1.409-!-item-!-187;#058&Agrocerystorepurchasedcratesof40orangeseachfor$5.00percrateandthensoldeachorangefor$0.20.Whatwasthestore'sgrossprofitoneachcrateoforanges?(A)$3.00(B)$6.00(C)$8.00(D)$10.00(E)$13.00-----------

2、-------------------------------------------------------------------------------------------------------------------------【答案】A【思路】revenue=cost+profit,假設X為thestore'sgrossprofitoneachcrateoforanges0.2x40(soldeachorangefor$0.20)=5(percrate)+X8=5+X,X=3-----------------------------------------

3、-------------------------------------------------------------------------------------------2.455-!-item-!-187;#058&TheproductPoftwoprimenumbersisbetween9and55.Ifoneoftheprimenumbersisgreaterthan2butlessthan6andtheotherisgreaterthan13butlessthan25,thenP=(A)15(B)33(C)34(D)46(E)51-----------

4、-------------------------------------------------------------------------------------------------------------------------【答案】E【思路】前提是p是兩個”質數”的乘積oneoftheprimenumbersisgreaterthan2butlessthan6包含3,5theotherisgreaterthan13butlessthan25包含17,19,23p可能為51,57,69,85,95,115(又9

5、------------------------------------------------------------------------------------------------------------------------3.664-!-item-!-187;#058&Acertaintaxicompanycharges$3.10forthefirst[?]ofamileplus$0.40foreachadditionalofamile.Whatwouldthiscompanychargeforataxiridethatwas8mileslong?(A)

6、$15.60(B)$16.00(C)$17.50(D)$18.70(E)$19.104.765-!-item-!-187;#058&Inastackofboardsatalumberyard,the20thboardcountingfromthetopofthestackisimmediatelybelowthe16thboardcountingfromthebottomofthestack.Howmanyboardsareinthestack?(A)38(B)36(C)35(D)34(E)32---------------------------------------

7、---------------------------------------------------------------------------------------------【答案】D【思路】上面數下來第20個剛好在由下往上數第16個的下面→上面數下來第20個是下面數來第15個（下面有14個,上面有19個,在加上中心點那一個19+14+1＝34---------------------------------------------------------------------------------------