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1、智課網(wǎng)GRE備考資料新GRE數(shù)學易錯題型解析_GRE數(shù)學1.l1,l2andl3arethreelinesinspaceThenumberofpointsatThenumberofpointsatwhichlinesl1andl2intersectwhichlinesl2andl3intersect1,三條肆意直線,L1和L2的交點的個數(shù)與L2和L3的交點的個數(shù)沒關(guān)。2.Thenumberof1/4-inchlengthsin1a4-inchlength2,是問4英尺中有若干好多個1/4英尺,應該是16個,所以A3.Themaximunnumberofsolidcubes4havinge
2、dgesoflength1/2meterthatcanbeplacedinsideacubicalboxhavinginsideedgesoflength1meter3邊長為1的立方體里最多能放下幾個邊長為1/2的立方體,當然是8個咯4.CubeChasvolume8cubiccentimetersTheareaofoneofthefacesofcubeC3squarecentimeters4立方體體積是8,那一個面的面積當然是4咯5.Ms.Smithgotan8percentcost-of-livingraiseof$20perweekMs.Smith'snewweeklysalary
3、$2605x*0.08=20,那x+20=270>2606.Onacertainnumberlive,if-7isadistanceof4fromnand7isadistanceof18fromnthenn=A.25B.11C.3D.-3E-116應該是-117.Forallrealnumbersaandb.ifa?b=a(a+b),thena?(a?b)=A.a2+abBa2+ab+aCa2+a+bDa3+a2bEa3+a2b+a2注:a2暗示a平方,a3暗示a立方7新界說的運算a?b=a(a+b),那a?(a?b)=a?(aa+ab)=a(a+aa+ab)=aa+aaa+aab8.s
4、ecretarytyped6letters,eachofwhichhadeither1or2pages.Ifthesecretarytyped10pagesinall,howmanyofthelettershad2pages?A1B2C3D4E5謎底是D,問題問題我都看不懂,是啥意思呢?這是說秘書打六封信,沒一封信要1頁或者兩頁。如不美觀秘書總共打了10頁,那么有若干好多封信是兩頁?解答:設有x封,則2x+(6-x)=10,解得x=4.9howmanyofthefivenumbersaboveareeachequaltotheproductofanintegerandanoddinteg
5、erthatgreaterthan1?這五個數(shù)是:2681416a.noneb.onec.twod.theree.four我感受這道題除了2不成能,其它四個數(shù)都有可能.可謎底是c,想問巨匠為什么?問題問題意思是這5個數(shù)哪些可所以2個>1的數(shù)的積,一個是奇數(shù),一個是整數(shù),只有6和14的因數(shù)中有奇數(shù),所以C.10這是一道圖表題.whatwastheapproximatepercentincreaseinpersonalincomefrom1965to1970?是這樣(1970-1965)/1965仍是(1970-1965)/1970這樣?是這樣:(1970-1965)/1965