已选分类
管理学工商管理
单选题Census data for Prenland show that unmarried Prenlandic men in their thirties outnumber unmarried Prenlandic women in that age group by about ten to one. Most of these men do wish to marry. Clearly, however, unless many of them marry women who are not Prenlandic, all but a minority will remain unmarried.
The argument makes which of the following assumptions?
单选题One-fifthofthelightswitchesproducedbyacertainfactoryaredefective.Four-fifthsofthedefectiveswitchesarerejectedandofthenondefectiveswitchesarerejectedbymistake.Ifalltheswitchesnotrejectedaresold,whatpercentoftheswitchessoldbythefactoryaredefective?(A)4%(B)5%(C)6.25%(D)11%(E)16%
单选题Eachstepofastaircaseis0.25meterwideand0.20meterhigh,asshowninthefigureabove.Allanglesshowninthefigurearerightangles.Iftheheightofthestaircaseis3.6metersandthelandingatthetopofthestaircaseis1meterwide,howlong,inmeters,isAB?
单选题If 75 percent of a class answered the first question on a certain test correctly, 55 percent answered the second question on the test correctly, and 20 percent answered neither of the questions correctly, what percent answered both correctly? (A) 10% (B) 20% (C) 30% (D) 50% (E) 65%
单选题Inthefigureabove,DA=DB=DC,whatisthevalueofx?
单选题Onthedayoftheperformanceofacertainplay,eachticketthatregularlysellsforlessthan$10,00issoldforhalfpriceplus$0.50,andeachticketthatregularlysellsfor$10.00ormoreissoldforhalfpriceplus$1.00.Onthedayoftheperformance,apersonpurchasesatotalofytickets,ofwhichxregularlysellfor$9.00eachandtherestregularlysellfor$12.00each.Whatistheamountpaid,indollars,fortheytickets?(A)7y-2x(B)12x-7y(D)7y+4x(E)7y+5x
单选题Inthefigureabove,twosearchlightsS1andS2arelocated10,000feetapart,eachcoversanareaofradius10,000feet,andeachislocated8,000feetfromtherailroadtrack.Tothenearest1,000feet,whatisthetotallengthxoftrackspannedbythesearchlights?
单选题Questionsrefertothefollowinggraphs.SALESANDEARNINGSOFCOMPANYX
单选题Acertainbasketballteamthathasplayedofitsgameshasarecordof17winsand3losses.Whatisthegreatestnumberoftheremaininggamesthattheteamcanloseandstillwinatleasofallofitsgames?(A)7(B)6(C)5(D)4(E)3
单选题At a certain university, if 50 percent of the people who inquire about admission policies actually submit applications for admission, what percent of those who submit applications for admission enroll in classes at the university? (1)Fifteen percent of those who submit applications for admission are accepted at the university. (2)Eighty percent of those who are accepted send a deposit to the university. (A) 条件(1)充分，但条件(2)不充分． (B) 条件(2)充分，但条件(1)不充分． (C) 条件(1)和(2)单独都不充分，但条件(1)和条件(2)联合起来充分． (D) 条件(1)充分，条件(2)也充分． (E) 条件(1)和条件(2)单独都不充分，条件(1)和条件(2)联合起来也不充分．
单选题How many gallons of water must be mixed with 1 gallon of a 15-percent salt solution to obtain a 10-percent salt solution?
单选题Two children, Bob and Mary, have piggy banks into which they deposit money earned from doing odd jobs. In a certain year, both Bob and Mary each deposited $5 on the first of every month into their respective piggy banks. If these were the only deposits made into the piggy banks during the year, on December 31 does Bob have more money in his piggy bank than Mary has in her piggy bank? (Assume no withdrawals) (1)On March 15 Bob had three times as much money in his piggy bank as Mary had in hers. (2)On June 15 Bob had twice as much money in his piggy bank as Mary had in hers.
单选题Are all of the numbers in a certain list of 15 numbers equal? (1)The sum of all of the numbers in the list is 60. (2)The sum of any 3 numbers in the list is 12。
单选题If x, y and z are non-zero numbers such that 1≥y＞x and xy=z, which of the following cannot be true?
单选题Smoking in bed has long been the main cause of home fires. Despite a significant decline in cigarette smoking in the last two decades, however, there has been no comparable decline in the number of people killed in home fires. Each one of the following statements, if true over the last two decades, helps to resolve the apparent discrepancy above EXCEPT:
单选题If S is an infinite set of real numbers, is there a number in S that is less than every other number in S? (1)Every number in S is an integer. (2)Every number in S is positive.
单选题DuringthefouryearsthatMrs.Lopezownedhercar,shefoundthathertotalcarexpenseswere$18,000.Fuelandmaintenancecostsaccountedforofthetotalanddepreciationaccountedforoftheremainder.Thecostofinsurancewas3timesthecostoffinancing,andtogetherthesetwocostsaccountedforofthetotal.Iftheonlyotherexpensesweretaxesandlicensefees,thenthecostoffinancingwashowmuchmoreorlessthanthecostoftaxesandlicensefees?
单选题If a is a positive integer, and if the units" digit of a
2
is 9 and the units" digit of (a+1)
2
is 4, what is the units" digit of (a+2)
2
?
单选题There are between 100 and 110 cards in a collection of cards. If they are counted out 3 at a tie, there are 2 left over, but if they are counted out 4 at a time, there is 1 left over. How many cards are in the collection? (A) 101 (B) 103 (C) 106 (D) 107 (E) 109
单选题Iftaxifareswere$1.00forthefistmileand$0.20foreachmilethereafter,thenthetaxifarefora3-mileridewas