Advertisements
Advertisements
प्रश्न
Recently, the answers to a test held nationwide were leaked to a group of unscrupulous people. The investigative agency has arrested the mastermind and nine other people A, B, C. D, E, F, G, H and I in this matter. Interrogating them, the following facts have been obtained regarding their operation. Initially, the mastermind obtains the correct answer key. All the others create their answer key from one or two people who already possess the same. These people are called his/her "sources".
If the person has two sources, then he/she compares the answer keys obtained for both sources. If the key to a question from both sources is identical, it is copied, otherwise it is left blank.
If the person has only one source, He/she copies the source's answer into his/her copy. Finally, each person compulsorily replaces one of the answers (not a blank one) with a wrong answer in his/her answer key.
The paper contained 200 questions, so the investigative agency has ruled out the possibility of two or more of them introducing wrong answers to the same question. The investigative agency has a copy of the correct answer key and has tabulated the following data. This data represents question numbers.
| Name | Wrong Answer(s) | Blank Answer(s) |
| A | 45 | - |
| B | 96 | 46,90,25 |
| C | 2756 | 17,46,90 |
| D | 17 | - |
| E | 4690 | - |
| F | 1446 | 92,90 |
| G | 25 | - |
| H | 4692 | - |
| I | 27 | 17,26,90 |
Which one of the following must have two sources?
पर्याय
A
B
C
D
Advertisements
उत्तर
B
Explanation:
On the basis of given information, the following result can be obtained. Initially, mastermind obtained correct answer key
W.A. = Wrong answer
B.A. = Blank answer
(1) The result shows that A, D and G obtained the answer key from mastermind.
(2) E and H obtained the answer key from A.
(3) F obtained the answer key from both E and H.
(4) I obtained the answer key from both E and D.
(5) C obtained the answer key from I only.
(6) B obtained the answer key from E and G.
And about the wrong answer
(1) A, D and G replaced the answers 46, 17 and 25 respectively.
(2) H replaced the answer 92.
(3) E replaced the answer 90.
(4) F replaced the answer 14.
(5) I replaced the answer 27.
(6) C replaced the answer 56.
(7) B replaced the answer 96.
Only B have two sources. Because B obtained the answer key E and G.
APPEARS IN
संबंधित प्रश्न
Some information is provided in the form of statements. On the basis of that information find the answer to the questions which follow.
1. A cube has six sides each of a different colour.
2. The red side is opposite black
3. The green side is between red and black
4. The blue side is adjacent to white
5. The brown side is adjacent to blue 6. The red side is face down.
The side opposite to brown is
The question in this section is based on the passage. The question is to be answered on the basis of what is stated or implied in the passage. For the question, more than one of the choices could conceivably answer the question. However, you are to choose the best answer; that is, the response that most accurately and completely answer the question.
Most people acknowledge that not all governments have a moral right to govern and that there are sometimes morally legitimate reasons for disobeying the law, as when a particular law prescribes behaviour that is clearly immoral. It is also commonly supposed that such cases are special exceptions and that, in general, the fact that something is against the law counts as a moral, as well as legal, ground for not doing it; i.e., we generally have a moral duty to obey a low simply because it is the law. But the theory known as philosophical anarchism denies this view, arguing instead that people who live under the jurisdiction of governments have no moral duty to those governments to obey their laws. Some commentators have rejected this position because of what they take to be its highly counter-intuitive' implications:
(a) that no existing government is morally better than any other (since all are, in a sense, equally illegitimate), and
(b) that, lacking any moral obligation to obey any laws, people may do as they please without scruple. In fact, however, philosophical anarchism does not entail these claims.
First, the conclusion that no government is morally better than any other does not follow from the claim that nobody owes moral obedience to any government. Even if one denies that there is a moral obligation to follow the laws of any government, one can still evaluate the morality of the policies and actions of various governments. Some governments do more good than harm, and others more harm than good, to their subjects. Some violate the moral rights of individuals more regularly, systematically, and seriously than others. in short, it is perfectly consistent with philosophical anarchism to hold that governments vary widely in their moral stature.
Which one of the following could be true?
Read the following and answer the questions:
Six persons— P, Q, R, S, T and W work in an Organisation. Each of them likes different colours, viz., Black, White, Blue, Green, Red and Yellow and their salaries are also different. The person who earns maximum does not like Blue or White colour. The person who earns the least does not like Black or Red colour. R likes Yellow colour and his salary is the second maximum. P likes White colour and earns more than T but less than W. Q likes Black colour who earns less than P but more than T. S likes Blue colour and T likes Red colour.
If they are arranged in the descending order according to their salaries, who will occupy the third position?
The question is based on a set of conditions. Choose the response that most accurately and completely answer the question.
Mercotek carried out a study to compare the productivity of its night shift with that of its day shift Every week the company’s six crews–F, G, H, R, and T-were ranked first (most productive) to sixth (least productive). There were notices. For any given week, either G and T were the two night-shift crews or else S and H were- the four other crew(s) were-the the day-shift crews for that week.
The following relationships held for every week of the study:
F is more productive than G.
R is more productive than S.
R is more productive than T.
S is more productive than H. and G is more productive than T.
If F is ranked third for a given week of the study, then which one of the following could also be true of that week?
Answer the questions on the basis of the information given below.
The head of a newly formed Government desires to appoint five of the six elected ministers P, Q, R, S, T and U to portfolios of Foreign, Industry and Commerce, Agriculture, Rural Development and Human Resources. U does not want any portfolio if S gets one of the five. R wants either Foreign or Human Resources or no portfolio. Q says that if S gets Industry and Commerce or Rural Development then she must get the other one. T insists on a portfolio if P gets one.
Which of the following is a valid assignment?
The question is based on a set of conditions. Choose the response that most accurately and completely answer the question.
At the snack café at a party, Ali, Bina, Champak and Diya are eating cookies. There are five kinds of cookies to choose from – chocolate chip cookies, oatmeal cookies, sugar cookies, peanut butter cookies and raisin cookies. Each of these four people eats at least two kinds of cookies. Their choices are governed by the following rules:
At most two of them eat oatmeal cookies
At least two of them eat sugar cookies
Ali does not eat any sugar cookies
Bina and Champak do not eat the same type of cookies Bina eats chocolate chip cookies
Champak eats sugar cookies
No one eats both raisin cookies and sugar cookies
If someone eats raisin cookies, they also eat peanut butter cookies
Which one of the following must be true?
The question is based on a set of conditions. Choose the response that most accurately and completely answer the question.
At the snack café at a party, Ali, Bina, Champak and Diya are eating cookies. There are five kinds of cookies to choose from – chocolate chip cookies, oatmeal cookies, sugar cookies, peanut butter cookies and raisin cookies. Each of these four people eats at least two kinds of cookies. Their choices are governed by the following rules:
At most two of them eat oatmeal cookies
At least two of them eat sugar cookies
Ali does not eat any sugar cookies
Bina and Champak do not eat the same type of cookies Bina eats chocolate chip cookies
Champak eats sugar cookies
No one eats both raisin cookies and sugar cookies
If someone eats raisin cookies, they also eat peanut butter cookies
Which pair of cookie types contains a cookie type eaten by exactly two different people?
The question is based on a set of conditions. Choose the response that most accurately and completely answer the question.
A science student has exactly four flasks - 1, 2, 3 and 4 - originally containing a red, a blue, a green, and an orange chemical, respectively. An experiment consists of mixing exactly two of these chemicals together by completely emptying the contents of one of the flasks into another of the flasks. The following conditions apply: The product of an experiment cannot be used in further experiments. Mixing the contents of 1 and 2 produces a red chemical. Mixing the contents of 2 and 3 produces an orange chemical. Mixing the contents of 3 with the contents of either 1 or 4 produces a blue chemical. Mixing the contents of 4 with the contents of either 1 or 2 produces a green chemical.
If the student will perform exactly two experiments and after the first experiment exactly one of the resulting three non-empty flasks contains an orange chemical, then in the second experiment the student could mix together the contents of flasks
Read the following information carefully and choose the most appropriate option:
A and B are good in driving bus and car. C and A are good in driving cars and scooter. C, D and E are good at driving scooter and tractor. E and C are good at driving scooter and auto-rickshaw. D and B are good in driving bus and tractor.
Who is good in driving scooter, tractor and auto-rickshaw but not good in driving car?
Read the following information and choose the most appropriate option:
P and Q are good at driving Motorcycle and Jeep. R and P are good at driving Jeep and Lorry. R, S, and T are good at driving Motor Cycle and Lorry. T and R are good at driving buses and Tempo. S and Q are good at driving Bus and Jeep.
Who is good in driving all the vehicles?
