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Logical Deduction Reasoning Quiz Details
| Quiz Name | Logical Deduction |
| Category | Reasoning |
| Number of Questions | 16 |
| Time | 30 Minutes |
| Exam Type | MCQ (Multiple Choice Questions) |
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1. Statements: All dogs are mammals. All mammals have lungs.
Conclusions:
I. All dogs have lungs.
II. All dogs are animals.
Options:
a) Only conclusion I follows
b) Only conclusion II follows
c) Both I and II follow
d) Neither I nor II follows
Answer: a) Only conclusion I follows
Explanation: From the statements, we can infer that all dogs are mammals and all mammals have lungs. Therefore, it can be concluded that all dogs have lungs. However, we cannot conclude that all dogs are animals as the given information does not provide any direct relationship between dogs and animals.
2. Statements: All doctors are humans. Some humans are musicians.
Conclusions:
I. All musicians are doctors.
II. Some doctors are musicians.
Options:
a) Only conclusion I follows
b) Only conclusion II follows
c) Both I and II follow
d) Neither I nor II follows
Answer: b) Only conclusion II follows
Explanation: From the given statements, we can infer that all doctors are humans, and some humans are musicians. Hence, it can be concluded that some doctors are musicians. However, we cannot conclude that all musicians are doctors as the given information does not provide any direct relationship between musicians and doctors.
3. Statements: All students are intelligent. Some intelligent people are rich.
Conclusions:
I. All rich people are students.
II. Some rich people are students.
Options:
a) Only conclusion I follows
b) Only conclusion II follows
c) Both I and II follow
d) Neither I nor II follows
Answer: b) Only conclusion II follows
Explanation: From the given statements, we can infer that all students are intelligent, and some intelligent people are rich. Therefore, it can be concluded that some rich people are students. However, we cannot conclude that all rich people are students as the given information does not provide any direct relationship between rich people and students.
4. Statements: All tigers are carnivores. All carnivores eat meat.
Conclusions:
I. All tigers eat meat.
II. All meat eaters are tigers.
Options:
a) Only conclusion I follows
b) Only conclusion II follows
c) Both I and II follow
d) Neither I nor II follows
Answer: a) Only conclusion I follows
Explanation: From the given statements, we can infer that all tigers are carnivores, and all carnivores eat meat. Therefore, it can be concluded that all tigers eat meat. However, we cannot conclude that all meat eaters are tigers as the given information does not provide any direct relationship between meat eaters and tigers.
5. Statements: Some birds can swim. All swimmers can dive.
Conclusions:
I. All birds can dive.
II. Some divers can fly.
Options:
a) Only conclusion I follows
b) Only conclusion II follows
c) Both I and II follow
d) Neither I nor II follows
Answer: a) Only conclusion I follows
Explanation: From the given statements, we can infer that some birds can swim, and all swimmers can dive. Therefore, it can be concluded that all birds can dive. However, we cannot conclude that some divers can fly as the given information does not provide any direct relationship between divers and flying.
6. Statements: All trees are plants. All plants have leaves.
Conclusions:
I. All trees have leaves.
II. All leaves belong to trees.
Options:
a) Only conclusion I follows
b) Only conclusion II follows
c) Both I and II follow
d) Neither I nor II follows
Answer: a) Only conclusion I follows
Explanation: From the given statements, we can infer that all trees are plants and all plants have leaves. Therefore, it can be concluded that all trees have leaves. However, we cannot conclude that all leaves belong to trees as the given information does not provide any direct relationship between leaves and trees.
7. Statements: All dogs have four legs. All cats have four legs.
Conclusions:
I. All four-legged animals are either dogs or cats.
II. Some four-legged animals are not dogs or cats.
Options:
a) Only conclusion I follows
b) Only conclusion II follows
c) Both I and II follow
d) Neither I nor II follows
Answer: a) Only conclusion I follows
Explanation: From the given statements, we can infer that all dogs and cats have four legs. Therefore, it can be concluded that all four-legged animals are either dogs or cats. We cannot conclude that some four-legged animals are not dogs or cats because the given information only talks about dogs and cats having four legs, not all animals.
8. Statements: Some men are tall. Some tall people are basketball players.
Conclusions:
I. All basketball players are tall.
II. Some basketball players are men.
Options:
a) Only conclusion I follows
b) Only conclusion II follows
c) Both I and II follow
d) Neither I nor II follows
Answer: b) Only conclusion II follows
Explanation: From the given statements, we can infer that some men are tall, and some tall people are basketball players. Therefore, it can be concluded that some basketball players are men. However, we cannot conclude that all basketball players are tall as the given information only talks about some tall people being basketball players, not all basketball players being tall.
9. Statements: All lawyers are argumentative. Some argumentative people are not lawyers.
Conclusions:
I. Some non-lawyers are argumentative.
II. All argumentative people are lawyers.
Options:
a) Only conclusion I follows
b) Only conclusion II follows
c) Both I and II follow
d) Neither I nor II follows
Answer: a) Only conclusion I follows
Explanation: From the given statements, we can infer that all lawyers are argumentative, and some argumentative people are not lawyers. Therefore, it can be concluded that some non-lawyers are argumentative. However, we cannot conclude that all argumentative people are lawyers as the given information only talks about some argumentative people being lawyers, not all argumentative people.
10. Statements: All birds can fly. Some birds can swim.
Conclusions:
I. All swimming birds can fly.
II. Some flying birds cannot swim.
Options:
a) Only conclusion I follows
b) Only conclusion II follows
c) Both I and II follow
d) Neither I nor II follows
Answer: b) Only conclusion II follows
Explanation: From the given statements, we can infer that all birds can fly, and some birds can swim. Therefore, it can be concluded that some flying birds cannot swim. However, we cannot conclude that all swimming birds can fly as the given information only talks about some birds being able to swim, not all birds that can swim.
11. Statements: All cats are mammals. Some mammals are not carnivorous.
Conclusions:
I. All cats are carnivorous.
II. Some cats are not carnivorous.
Options:
a) Only conclusion I follows
b) Only conclusion II follows
c) Both I and II follow
d) Neither I nor II follows
Answer: d) Neither I nor II follows
Explanation: From the given statements, we can infer that all cats are mammals, and some mammals are not carnivorous. However, we cannot conclude that all cats are carnivorous because the given information does not provide any direct relationship between cats and being carnivorous. Similarly, we cannot conclude that some cats are not carnivorous because the given information does not provide any direct relationship between cats and being carnivorous.
12. Statements: All engineers are problem-solvers. Some problem-solvers are not creative.
Conclusions:
I. All engineers are creative.
II. Some engineers are not creative.
Options:
a) Only conclusion I follows
b) Only conclusion II follows
c) Both I and II follow
d) Neither I nor II follows
Answer: b) Only conclusion II follows
Explanation: From the given statements, we can infer that all engineers are problem-solvers, and some problem-solvers are not creative. Therefore, it can be concluded that some engineers are not creative. However, we cannot conclude that all engineers are creative because the given information does not provide any direct relationship between engineers and being creative.
13. Statements: All cats are animals. Some animals are not pets.
Conclusions:
I. All cats are pets.
II. Some cats are not pets.
Options:
a) Only conclusion I follows
b) Only conclusion II follows
c) Both I and II follow
d) Neither I nor II follows
Answer: b) Only conclusion II follows
Explanation: From the given statements, we can infer that all cats are animals, and some animals are not pets. Therefore, it can be concluded that some cats are not pets. However, we cannot conclude that all cats are pets because the given information does not provide any direct relationship between cats and being pets.
14. Statements: All politicians are liars. Some liars are not criminals.
Conclusions:
I. All politicians are criminals.
II. Some politicians are not criminals.
Options:
a) Only conclusion I follows
b) Only conclusion II follows
c) Both I and II follow
d) Neither I nor II follows
Answer: d) Neither I nor II follows
Explanation: From the given statements, we can infer that all politicians are liars, and some liars are not criminals. However, we cannot conclude that all politicians are criminals because the given information only talks about politicians being liars, not all liars being politicians. Similarly, we cannot conclude that some politicians are not criminals because the given information does not provide any direct relationship between politicians and being criminals.
15. Statements: All pianists are musicians. Some musicians are singers.
Conclusions:
I. All singers are pianists.
II. Some musicians are not pianists.
Options:
a) Only conclusion I follows
b) Only conclusion II follows
c) Both I and II follow
d) Neither I nor II follows
Answer: b) Only conclusion II follows
Explanation: From the given statements, we can infer that all pianists are musicians, and some musicians are singers. Therefore, it can be concluded that some musicians are not pianists. However, we cannot conclude that all singers are pianists because the given information only talks about some musicians being singers, not all singers being musicians who play the piano.
16. Statements: All birds have feathers. Some birds can fly.
Conclusions:
I. All animals with feathers can fly.
II. All flying animals have feathers.
Options:
a) Only conclusion I follows
b) Only conclusion II follows
c) Both I and II follow
d) Neither I nor II follows
Answer: a) Only conclusion I follows
Explanation: From the given statements, we can infer that all birds have feathers, and some birds can fly. Therefore, it can be concluded that all animals with feathers can fly. However, we cannot conclude that all flying animals have feathers because the given information only talks about birds having feathers, not all animals that can fly.
17. Statements: All doctors are professionals. Some professionals are not businesspeople.
Conclusions:
I. All businesspeople are professionals.
II. Some doctors are not businesspeople.
Options:
a) Only conclusion I follows
b) Only conclusion II follows
c) Both I and II follow
d) Neither I nor II follows
Answer: b) Only conclusion II follows
Explanation: From the given statements, we can infer that all doctors are professionals, and some professionals are not businesspeople. Therefore, it can be concluded that some doctors are not businesspeople. However, we cannot conclude that all businesspeople are professionals because the given information only talks about some professionals being not businesspeople, not all professionals being businesspeople.
18. Statements: All dogs are loyal. Some loyal pets are not dogs.
Conclusions:
I. All loyal pets are dogs.
II. Some dogs are not loyal pets.
Options:
a) Only conclusion I follows
b) Only conclusion II follows
c) Both I and II follow
d) Neither I nor II follows
Answer: b) Only conclusion II follows
Explanation: From the given statements, we can infer that all dogs are loyal, and some loyal pets are not dogs. Therefore, it can be concluded that some dogs are not loyal pets. However, we cannot conclude that all loyal pets are dogs because the given information only talks about some loyal pets being not dogs, not all loyal pets being dogs.
19. Statements: All lawyers are argumentative. Some argumentative people are not lawyers.
Conclusions:
I. All argumentative people are lawyers.
II. Some lawyers are not argumentative.
Options:
a) Only conclusion I follows
b) Only conclusion II follows
c) Both I and II follow
d) Neither I nor II follows
Answer: b) Only conclusion II follows
Explanation: From the given statements, we can infer that all lawyers are argumentative, and some argumentative people are not lawyers. Therefore, it can be concluded that some lawyers are not argumentative. However, we cannot conclude that all argumentative people are lawyers because the given information only talks about some argumentative people being not lawyers, not all argumentative people being lawyers.
20. Statements: All bicycles have two wheels. Some vehicles with two wheels are not bicycles.
Conclusions:
I. All bicycles are vehicles.
II. Some vehicles are not bicycles.
Options:
a) Only conclusion I follows
b) Only conclusion II follows
c) Both I and II follow
d) Neither I nor II follows
Answer: c) Both I and II follow
Explanation: From the given statements, we can infer that all bicycles have two wheels, and some vehicles with two wheels are not bicycles. Therefore, it can be concluded that all bicycles are vehicles, and some vehicles are not bicycles.
21. Statements: All snakes are reptiles. All reptiles are cold-blooded.
Conclusions:
I. All snakes are cold-blooded.
II. All cold-blooded animals are reptiles.
Options:
a) Only conclusion I follows
b) Only conclusion II follows
c) Both I and II follow
d) Neither I nor II follows
Answer: a) Only conclusion I follows
Explanation: From the given statements, we can infer that all snakes are reptiles, and all reptiles are cold-blooded. Therefore, it can be concluded that all snakes are cold-blooded. However, we cannot conclude that all cold-blooded animals are reptiles because the given information only talks about reptiles being cold-blooded, not all cold-blooded animals being reptiles.
22. Statements: Some athletes are football players. All football players wear helmets.
Conclusions:
I. Some athletes wear helmets.
II. All athletes wear helmets.
Options:
a) Only conclusion I follows
b) Only conclusion II follows
c) Both I and II follow
d) Neither I nor II follows
Answer: a) Only conclusion I follows
Explanation: From the given statements, we can infer that some athletes are football players, and all football players wear helmets. Therefore, it can be concluded that some athletes wear helmets. However, we cannot conclude that all athletes wear helmets because the given information only talks about football players wearing helmets, not all athletes wearing helmets.
23. Statements: All pianists can play the guitar. Some guitar players cannot play the piano.
Conclusions:
I. All musicians can play both the piano and the guitar.
II. Some musicians can play only the guitar.
Options:
a) Only conclusion I follows
b) Only conclusion II follows
c) Both I and II follow
d) Neither I nor II follows
Answer: b) Only conclusion II follows
Explanation: From the given statements, we can infer that all pianists can play the guitar, and some guitar players cannot play the piano. Therefore, it can be concluded that some musicians can play only the guitar. However, we cannot conclude that all musicians can play both the piano and the guitar because the given information only talks about pianists being able to play the guitar, not all musicians.
24. Statements: All good students study regularly. Some regular studiers are not good students.
Conclusions:
I. All good students are regular studiers.
II. Some good students are not regular studiers.
Options:
a) Only conclusion I follows
b) Only conclusion II follows
c) Both I and II follow
d) Neither I nor II follows
Answer: d) Neither I nor II follows
Explanation: From the given statements, we can infer that all good students study regularly, and some regular studiers are not good students. Therefore, we cannot conclude that all good students are regular studiers because the given information only talks about good students studying regularly, not all regular studiers being good students. Similarly, we cannot conclude that some good students are not regular studiers because the given information only talks about some regular studiers not being good students, not all good students being not regular studiers.
25. Statements: Some doctors are researchers. All researchers have Ph.D. degrees.
Conclusions:
I. All doctors have Ph.D. degrees.
II. Some Ph.D. degree holders are not doctors.
Options:
a) Only conclusion I follows
b) Only conclusion II follows
c) Both I and II follow
d) Neither I nor II follows
Answer: b) Only conclusion II follows
Explanation: From the given statements, we can infer that some doctors are researchers, and all researchers have Ph.D. degrees. Therefore, it can be concluded that some Ph.D. degree holders are not doctors. However, we cannot conclude that all doctors have Ph.D. degrees because the given information only talks about researchers having Ph.D. degrees, not all Ph.D. degree holders being doctors.
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Moreover, the below given Logical Deduction Questions are the best and most commonly collected question need to answer logically. Furthermore, to attempt any of the competitive exams, there will be Reasoning concept for sure. So, you should be bold enough for Logical Deduction Reasoning Questions. By the way, we provided you the tips and tricks to overcome your difficulties. Meanwhile, have a look at the concept and then prepare for the exam. Candidates have to make on their own and feel like they don’t know how to solve those tricky questions even. So, for those people, this post will be handy and can practice Logical Deduction Questions and Answers as much as aspirants can.
About Logical Deduction Reasoning Questions
Derivation of the conclusion from the given set of statements or conditions is the central theme in Logical Deductions also known as Syllogisms. Generally, Logical Deduction includes a condition within a statement that states an event depends on the other. Learning this concept also improves your logical ability. The comments given here are not dependent on the occurrence of the other. The process involved in the content are:
- Immediate Deductive Inference – here the conclusion is given based on conversion, obversion, and contraposition.
- Mediate Deductive Inference – here the conclusion obtained by three terms; major, minor and the middle term.
As you can learn by the completion of the post, there will be four statements given, by those you need to conclude the final statement to reach the problem, by using the above. We also provide you the complicated issues even to overcome the difficulties. Candidates can then maintain the reference and then answer the question confidently. Moreover, the conclusion for the site contains “If one statement then the other,” “One statement follows the other,” “Both are necessary to conclude.”
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- Perfectness in answering the question increases.
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Results of Logical Deduction Reasoning Quiz
- At the end of the exam, the quick explanation is provided for the question.
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