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, 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
पर्याय
Only (I)
Only (II)
Neither (I) nor (II)
Both (I) and (II)
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
'All men are mortal and Victoria is a woman and hence Victoria is mortal‘. This statement is:
Read the following information carefully and choose the most appropriate option:
A and B are good at driving bus and car. C and A are good at driving car 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 at driving bus and tractor.
Who is good at driving tractor, scooter, car and autorickshaw but not bus?
Find the odd one out of the following group.
Windshield, Spark plug, Clutch pedal, Car, Engine
Find the odd one out from the following:
Flow : River :: Stagnant : ?
Paw : Cat :: Hoof : ?
A large volume of water is gushing through a pipe which narrows at the outlet. At which point, A, B, C or D will the water flow fastest?
Safe : Secure :: Protect : ?
In making a decision about an important question, it is desirable to distinguish between a 'strong' argument and a 'weak' argument. A 'strong' argument must be both important and directly related to the question. A 'weak' argument may not be directly related to the question and may be of minor importance or may be related to the trivial aspect of the question. The question below is followed by two arguments numbered I and II. You have to decide which of the arguments is 'strong' and which is 'weak'.
Statement
- Should all the factories in the cities be shifted to the outskirts, far away from the main city?
Arguments
- Yes, this is an essential Step for controlling pollution in the city.
- No, such a Step will lead to a lot of inconveniences to the employees of the factories and their families as well.
The question below is given a statement followed by two assumptions numbered I and II. An assumption is something supposed or taken for granted. You have to consider the statement and the following assumptions and decide which of the assumptions is implicit in the statement.
Statement Many species of animals on our earth are still not studied scientifically and if we do not do this work urgently, many species will face extinction.
Assumptions
- Earth may lose all types of life very shortly.
- It is desirable and possible to study scientifically many animal species.
