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Six scientists A,B,C,D,E and F are to present a paper each at a one-day conference. Three of them will present their papers in the morning session before the lunch break whereas the other three will be presented in the afternoon session. The presentations have to be scheduled in such a way that they comply with the following conditions: B should present his paper immediately before C's presentation; their presentations cannot be separated by the lunch break. D must be the first or the last scientist to present his paper. Q: If F is to present his paper immediately after D,C could be scheduled for which of the following places in the order of presenters?
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A. First
B. Second
C. Third
D. Fourth
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In a computer data transfer-cable plant,cables are assembled by twisting plastic-coated wires together.There are wires of exactly six different solid colours---red,purple,pink,green,orange and book --wires must be assembled into single cables according to the following rules:Each cable must contain at least three wires and wires of at least three different colours.These cables are joined by the following rules:At most two wires in a single cable can be black.At most two wires in a single cable can be orange.There can be at most one wire of each of the other colours in a single cable.If one wire is red,then one wire must be purple.If one wire is pink,then no wire can be green.Q-If exactly one black wire and exactly one orange wire are used in an assembled cable,which of the following must be true?
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A. The cable contains no more than five wires.
B. The cable contains a purple wire.
C. The cable does not contain a pink wire.
D. The cable does not contain a red wire.
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During 2006, from january through june,the Chairman of Physics Department will be on Sabbath.The Dean of college has asked each of the college six professors int he department---Akhter,Bilal,Chohan,Fraz,Hamid and Noman--to serve as acting chairman during one of these months.The physicists can decide the order in which they will serve,subject only to the following criteria established by the dean.i. Chohan will serve as chairman in February.ii.Akhter will serve as chairman before Hamid does.iii.Bilal and Fraz will serve as chairman in consecutive months.Q-If Bilal serves in May,what is the latest month in which Akhter,could serve?
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A. March
B. April
C. January
D. February
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In a city, police commissioner planed to educate the citizens the traffic rules. He arranged a separate department and appointed senior staff members as instructors. Students in this class are required to meet the chief instructor once per term. The chief instructor offers meeting times on one day, one meeting time in the morning, one in the afternoon, and one in the evening. The students in the class this term are Farid, Gia, Hamid, Javed, Kamran, Lubna, Majeed, and Nargis. The meetings with the chief instructor must conform to the following conditions: The chief instructor will not meet with only one student at a time. The chief instructor must meet with at least one student in each of the available meeting times. ',arid and Javed cannot attend the same meeting. Kamran and Majced cannot attend the same meeting. If Gia attends the morning meeting, then Kamran must attend the evening meeting. If Javed attends the afternoon meeting, then Hamid must attend the afternoon meeting. The number of students who meet in the morning must be the same as the number of students who meet in the evening. Q:If Hamid and Farid both meet in the morning, then which of the following most be true?
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A. Javed meets in the evening
B. Kamran meets in the morning
C. Lubna meets in the morning
D. Majeed meets in the afternoon
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Travelers may enter and remain in the republic for up to 57 days.If a travelers are to stay for more than seven days,however,a special visa is required.Q-10.If the statements above are true,which of the following must also be true?
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A. Travelers who are staying in the Republic for 15 days must have a special visa.
B. Many travelers who any stay in the Republic do not need visa.
C. Some travelers who stay in the Republic for more than seven days do not have to appropriate visas.
D. Travelers who stay less than seven days in the Republic do not need visas.
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Two statements, labeled X and Y, follow each of the following questions.The statements contain certain information.In the questions you do not actually have to compute an answer rather you have to decide whether the information given in the statement X and Y is sufficient to find a correct answer by using basic mathematicsand everyday facts.Q-In a B.Sc class at G.C University,40 boys and 15 girls registered for Calculate and Analytical geometry How many boys passed the course?X.7 students could not pass.Y.There were 3 girls who obtained A grade.
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A. Statement X.Alone is sufficient but Y. Alone is not sufficient to answer this question.
B. Statement Y,Alone is sufficient but X, Alone is not sufficient to answer this question.
C. Statement X and Y,TOGETHER are sufficient to answer the question but NEITHER of them is sufficient Alone.
D. Statements X and Y COMBINED are NOT sufficient to answer the question and additional information is needed to find the correct answer
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According to the new office smoking regulation,only employees who have enclosed offices may smoke at their desks.Virtually,all employees with enclosed offices are at the professional level,and virtually all secretaries employees lack enclosed offices.Therefore secretaries who smoke should be offered enclosed offices.1.Which of the following is an assumption that enables the conclusion above to be properly drawn?
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A. Employees at the professional level who do not smoke should keep their enclosed offices.
B. Employees with enclosed offices should not smoke at their desks,even though the new regulations permit them to do so.
C. Employees at the secretarial level should to smoke at their desks,even if they do not have enclosed offices.
D. The smoking regulations should allow all employees who smoke an equal opportunity to do so,regardless of an employee's job level.
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A school is introducing a new testing system.To test the system,three trainers (Latif,Mehak and Osaf) and three dogs (Lottie,Muts and Ony) are assigned to three different rooms,one trainer,and one dog per room.The Initial assignment is as follows:Room1 : Latif and LottieRoom2 : Mehak and MutsRoom3 : Osaf and OnyThe participants have learned five different commands,each of which they will execute as soon as the command is given.Command A requires the trainer in Room 1 to move to Room 2,the trainer in Room 2 to move to Room 3,and the trainer in Room 3 to move to Room 1.Command B requires the dogs in Room 1 and 2 to change places.Command C requires the dogs in Room 2 and 3 to change places.Command D requires the dogs in Room 3 and 1 to change places.Command E requires each of the dogs to go to the room containing the trainer it was matched with in the initial assignment.Q-Which of the following sequences of commands will yield a final arrangement in which Osaf and Lottie are in Room 2?
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A. B,C,A
B. B,A,A
C. D,A,E
D. B,C,E,A
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All R's are either P's or Q's.All P's are R's.All Q's are R's.No Y's are Z's.Some Q's are Z's.Not all Z's are R's.Q-If all X's are either P's or Q's,then which of the following is necessarily false?
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A. All X's are R's
B. All P's are X's
C. Some Q's are X's
D. All X's are H's
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On a factory control room, there are three ON-OFF switches on central control panel, labeled A,B, and C. They are changed from default setting to a required setting based on the following rules: In case only switch A is ON in the default setting, then turn switch BON.. In case switches A and B are the only switches ON in the default setting, then turn switch CON. In case all the three switches are ON,in default setting, then turn the switch C OFF. For any other default setting turn ON all switches that are OFF and turn OFF all switches,if any, that are ON. Q: In case, all the three switches are ON in the second setting, which among the following could have been the default setting?
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A. AON,BON,CON
B. AON,BON,COFF
C. AON,BOFF,CON
D. AON,BOFF,COFF
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