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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?
Concept: undefined >> undefined
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 |
How many people (excluding the mastermind) needed to make answer keys before C could make his answer key?
Concept: undefined >> undefined
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Six people A, B, C, D, E and F live on a six-story building each on one floor. The following statements describe where they stay.
(i) B lives on floor 6.
(ii) A is equally far from C and E.
(iii) F is an engineer.
(iv) D is two floors above F.
(v) C does not live next to an engineer.
Which of the following is true?
Concept: undefined >> undefined
Six people A, B, C, D, E and F live on a six-story building each on one floor. The following statements describe where they stay.
(i) B lives on floor 6.
(ii) A is equally far from C and E.
(iii) F is an engineer.
(iv) D is two floors above F.
(v) C does not live next to an engineer.
If statement (v) is disregarded which floor does A stay on?
Concept: undefined >> undefined
Six people A, B, C, D, E and F live on a six-story building each on one floor. The following statements describe where they stay.
(i) B lives on floor 6.
(ii) A is equally far from C and E.
(iii) F is an engineer.
(iv) D is two floors above F.
(v) C does not live next to an engineer.
Which of the following is not true?
Concept: undefined >> undefined
Six people A, B, C, D, E and F live on a six-story building each on one floor. The following statements describe where they stay.
(i) B lives on floor 6.
(ii) A is equally far from C and E.
(iii) F is an engineer.
(iv) D is two floors above F.
(v) C does not live next to an engineer.
If C does not live next to an engineer is invalid, how many types of arrangements are possible?
Concept: undefined >> undefined
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?
Concept: undefined >> undefined
Read the following information carefully and answer the question given below.
Nine players - G, H, I, J, K, L, M, N and O – have to be put in three teams. Each team will consist of three players and each player will appear only once in a team. The teams must be arranged according to the following conditions.
i. I and N must be in the same team.
ii. K and L must be in the same team.
iii. O and J cannot be in the same team.
iv. M must be in the second team.
v. Either J or M or both must be in the team with H
Which of the following cannot be true?
Concept: undefined >> undefined
Read the following information carefully and answer the question given below.
Nine players - G, H, I, J, K, L, M, N and O – have to be put in three teams. Each team will consist of three players and each player will appear only once in a team. The teams must be arranged according to the following conditions.
i. I and N must be in the same team.
ii. K and L must be in the same team.
iii. O and J cannot be in the same team.
iv. M must be in the second team.
v. Either J or M or both must be in the team with H
All of the following could be in the same team as K, except
Concept: undefined >> undefined
Read the following information carefully and answer the question given below.
Nine players - G, H, I, J, K, L, M, N and O – have to be put in three teams. Each team will consist of three players and each player will appear only once in a team. The teams must be arranged according to the following conditions.
i. I and N must be in the same team.
ii. K and L must be in the same team.
iii. O and J cannot be in the same team.
iv. M must be in the second team.
v. Either J or M or both must be in the team with H
If J and K are in the 3rd team, which of the following players must be in 2nd?
Concept: undefined >> undefined
Read the following information carefully and answer the question given below.
Nine players - G, H, I, J, K, L, M, N and O – have to be put in three teams. Each team will consist of three players and each player will appear only once in a team. The teams must be arranged according to the following conditions.
i. I and N must be in the same team.
ii. K and L must be in the same team.
iii. O and J cannot be in the same team.
iv. M must be in the second team.
v. Either J or M or both must be in the team with H
Which of the following players could be in a team together?
Concept: undefined >> undefined
Read the following information carefully and answer the question given below.
Nine players - G, H, I, J, K, L, M, N and O – have to be put in three teams. Each team will consist of three players and each player will appear only once in a team. The teams must be arranged according to the following conditions.
i. I and N must be in the same team.
ii. K and L must be in the same team.
iii. O and J cannot be in the same team.
iv. M must be in the second team.
v. Either J or M or both must be in the team with H
The 3rd team could consist of the following except
Concept: undefined >> undefined
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 motor Cycle, Jeep and Lorry but not bus?
Concept: undefined >> undefined
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 Tempo, Motor Cycle, Lorry but not Jeep?
Concept: undefined >> undefined
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?
Concept: undefined >> undefined
Read carefully the information and answer the question that follows.
A college received fifty applications for a certain course. In the qualifying examination, one-tenth of them secured marks in the 90-95% range. Within remaining segment, three-fifths of them secured marks in 75-90% range. The rest secured below 75%. To get admission, the following restrictions hold good
i. No student who has scored below 75% can seek admission to Physics course.
ii. No student is allowed to opt Physics without opting Mathematics.
iii. No student is allowed to opt Physics and Astrophysics simultaneously.
iv. To opt Mathematics or Astrophysics, a student should have scored at least 70% in the qualifying examination.
Which one of the following alternatives is possible?
Concept: undefined >> undefined
Read the following information and answer the questions that follows:
That the human soul is immaterial is an undisputed fact. Significantly, what is not matter is not spatial and consequently, it is not vulnerable to motion. Evidently, no motion no dissolution. What escapes from dissolution is also free from corruptibility. Therefore, the human soul is immortal. In this argument, one premise is missing. Complete the argument by choosing from the following:
Concept: undefined >> undefined
Read the following information and answer the questions that follows:
That the human soul is immaterial is an undisputed fact. Significantly, what is not matter is not spatial and consequently, it is not vulnerable to motion. Evidently, no motion no dissolution. What escapes from dissolution is also free from corruptibility. Therefore, the human soul is immortal. In this argument, which one of the following, if true, affects seriously the argument presented above?
Concept: undefined >> undefined
Protagonists of human rights vehemently oppose capital punishment. Their opposition stems mainly from three reasons. Firstly, man cannot terminate what he cannot generate. Secondly, the function of punishment is to reform the culprit. Thirdly, a culprit should be given an opportunity to repent. Admittedly, death penalty fails on all three counts. However, the defenders argue that a person is punished because he has to pay for his deeds. Reformation or repentance, according to them, is peripheral. Hence, death penalty is admissible.
Which one of the following is the focus of this debate?
Concept: undefined >> undefined
Since Venus rotates slowly, Fred Whipple thought that like Mercury, Venus keeps one face always towards the Sun. If so, he said that the dark side would be very cold. However, he knew with the help of earlier study carried out by Petit and Nicholson that it was not the case. So, he concluded that the planet must rotate fairly often to keep the darker side warmer.
Which of the following is the original premise?
Concept: undefined >> undefined
