已选分类
管理学
单选题If X and Y are sets of integers, X△Y denotes the set of integers that belong to set X or set Y, but not both. If X consists of 10 integers, Y consists of 18 integers，and 6 of the integers are in both X and Y, then X△Y consists of how many integers? (A) 6 (B) 16 (C) 22 (D) 30 (E) 174
单选题Raffleticketsnumberedconsecutivelyfrom101through350areplacedinabox.Whatistheprobabilitythataticketselectedatrandomwillhaveanumberwithahundredsdigitof2?
单选题If Blankenship Enterprises has to switch suppliers in the middle of a large production run, the company will not show a profit for the year. Therefore, if Blankenship Enterprises in fact turns out to show no profit for the year, it will also turn out to be true that the company had to switch suppliers during a large production run.
The reasoning in the argument is most vulnerable to criticism on which one of the following grounds?
单选题Aportionofathermometeraboveiscalibratedtoshowdegreesinequalincrements.IfthetemperatureindicatesareadingatlevelA,whatisthetemperature?
单选题An even number x divided by 7 give some quotient plus a remainder of 6. Which of the following, when added to x, gives a sum which must be divisible by 14? (A) 1 (B) 3 (C) 7 (D) 8 (E) 13
单选题Ify≠3andisaprimeintegergreaterthan2,whichofthefollowingmustbetrue?Ⅰ．x=yⅡ．y=1Ⅲ．xandyareprimeintegers.
单选题The workers at Bell Manufacturing will shortly go on strike unless the management increases their wages. As Bell"s president is well aware, however, in order to increase the workers" wages, Bell would have to sell off some of its subsidiaries. So, some of Bell"s subsidiaries will be sold.
The conclusion above is properly drawn if which one of the following is assumed?
单选题REVENUEFORSTOREXDURINGWEEK1Duringweek1,revenuefromeggsprovidedwhatpercentofthetotalrevenueforstoreX?
单选题What is the greatest commom divisor of positive integers m and n? (1)m is a prime number. (2)m and n are consecutive integers.
单选题Set S consists of n distinct positive integers, none of which is greater than 12. What is the greatest possible value of n if no two integers in S have a common factor greater than 1? (A) 4 (B) 5 (C) 6 (D) 7 (E) 11
单选题Inthefigureabove,squareCDEFhasarea4.Whatistheareaof△ABF?
单选题Inthefigureabove,segmentsPRandQRareeachparalleltooneoftherectangularcoordinateaxes.IstheratioofthelengthofQRtothelengthofPRequalto1?(1)c=3andd=4(2)a=-2andb=-1
单选题In a certain game, a large container is filled with red, yellow, green and blue beads worth, respectively, 7, 5, 3, and 2 points each. A number of beads are then removed from the container. If the product of the point values of the removed beads is 147,000, how many red beads were removed? (A) 5 (B) 4 (C) 3 (D) 2 (E) 0
单选题RectangleWXYZisinscribedinacirclewithcenterOasshownabove.Ifthediameterofthecircleisequalto16,thenwhatistheareaoftheshadedregion?(1)WZ=OW(2)XW＜XY
单选题In how many different ways can 3 people be assigned to fill 3 different positions so that each person is assigned to exactly one position?
单选题Theshadedregioninthefigureaboverepresentsarectangularframewithlength18inchesandwidth15inches.Theframeenclosesarectangularpicturethathasthesameareaastheframeitself.Ifthelengthandwidthofthepicturehavethesameratioasthelengthandwidthoftheframe,whatisthelengthofthepicture,in-inches?
单选题Intheadditionproblemabove,thenumber□mustbe
单选题Is the positive integer x an even number?
(1)If z is divided by 3, the remainder is 2.
(2)If x is divided by 5, the remainder is 2.
单选题After 5 games, a rugby team had an average of 28 points per game. In order to in crease the average by n points, how many points must be scored in a 6th game? (A) n (B) 6n (C) 28n (D) 28+n (E)28+6n
单选题A certain used-book dealer sells paperback books at 3 times dealer's cost and hardback books at 4 times dealer's cost. Last week the dealer sold a total of 120 books, each of which had cost the dealer$1. If the gross profit (sales revenue minus dealer's cost) on the sale of all of these books was$300, how many of the books sold were paper backs?