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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, Hand I in this matter. interrogating them, the following facts have been obtained regarding their operation. Initially, the mastermind obtains the correct answer-key. AU 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 | 27, 56 | 17, 46, 90 |
| D | 17 | ____ |
| E | 46, 90 | ____ |
| F | 14, 46 | 92, 90 |
| G | 25 | ____ |
| H | 46, 92 | ____ |
| I | 27 | 17, 26, 90 |
Which of the following two groups of people has identical sources?
1) A, D and G
2) E and H
विकल्प
Only (I)
Only (II)
Neither (I) nor (II)
Both (I) and (II)
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उत्तर
Only (I)
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.
A, D and G have identical sources.
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संबंधित प्रश्न
Find the odd one out :
Onlookers, Theatre goers, Queue, Spectators
Instructions for Question: Read the information given below to answer the question.
(i) Mohan‘s reading schedule consists of reading only subject on a given day of the week.
(ii) The subjects are Physics, Chemistry, Mathematics, Biology, and Social Science.
(iii) Monday to Saturday are reading days including one day only for play. Sunday is a complete holiday for Mohan.
(iv) Mathematics day is neither on the first day nor on the last day but earlier than the Chemistry day.
(v) Biology day is on the immediate next day of Chemistry day.
(vi) Physics day is on the immediate previous day of the play day. (vii) Biology day and Social Science day have a gap of two days between them.
(viii) Social Science day is on the immediate next day of the play day.
Which of the following day is the play day?
Instructions for Question: Read the information given below to answer the question.
A, B, C, D, E, F, G, and H want to have dinner on a round table and they have worked out the following seating arrangements.
(a) A will sit beside C.
(b) H will sit beside A.
(c) C will sit beside E.
(d) F will sit beside H.
(e) E will sit beside G.
(f) D will sit beside F.
(g) G will sit beside B.
(h) B will sit beside D.
Which of the following is wrong?
Instructions for Question: Choose the set of three statements where the third statement can be logically derived from the preceding two.
Statements:
1. Some students love reading.
2. Some adults do not love reading.
3. Some students are not adults.
4. Some students are adults.
5. No reading lover is an adult.
6. Some men do not love reading.
The set of statements is:
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, Hand I in this matter. interrogating them, the following facts have been obtained regarding their operation. Initially, the mastermind obtains the correct answer-key. AU 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 | 27, 56 | 17, 46, 90 |
| D | 17 | ____ |
| E | 46, 90 | ____ |
| F | 14, 46 | 92, 90 |
| G | 25 | ____ |
| H | 46, 92 | ____ |
| I | 27 | 17, 26, 90 |
Which of the following statements is true?
Four statements are given below. Group two of them in such a way that one is logically incorrect and the other is verifiable as a matter of fact-
(a) The Sun does not rise in the East.
(b) A straight line is the shortest distance between any two points.
(c) Every circle has a center.
(d) The maximum duration of a total solar eclipse is about 7.5 minute.
Choose the most appropriate option:
Geeta is twice the present age of Seema. If age of Seema is 20 years now, how many years ago Geeta was three times Seema's age?
The question contains six statements followed by four sets of combinations of three. Choose the set, which gives the most logical triad. i.e. the third statement mentioned should be a conclusion drawn from the first two statements.
Statements:
- Some men are of short- height.
- Short-heighted men are intelligent.
- Sudhir is a man.
- Sudhir is of short-height.
- Sudhir is intelligent.
- AII men are intelligent.
Read the information given below and answer the question that follows.
A large cube is painted on all its six faces. It is then cut into a certain number of smaller identical cubes. It was found that among the smaller cubes, there were eight cubes which didn't have any face painted. How many small cubes have exactly three faces painted?
Master : OCUVGT :: LABOUR : ?
