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RRB NTPC Syllogism — practice questions

Explore 14 free Syllogism questions in RRB NTPC General Intelligence and Reasoning. Open each question or exercise to read its content, reference answers and available explanation.

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Syllogism questions and exercises with answers

Showing questions 1–14 of 14.

Statements: All cats are mammals. All mammals are animals. Conclusion: All cats are animals.Read the answer and worked solution →Statements: Some dogs are brown. All brown things are animals. Conclusion: Some dogs are animals.Read the answer and worked solution →Statements: No teachers are lazy. Some teachers are intelligent. Conclusion: Some intelligent are not lazy.Read the answer and worked solution →Statements: (i) All students are hardworking. (ii) Rohan is not hardworking. Which conclusion is valid?Read the answer and worked solution →All ducks swim. Donald is a duck. Therefore:Read the answer and worked solution →RRB NTPC · Universal Syllogism DeductionRead the answer and worked solution →RRB NTPC · Valid vs Invalid SyllogismRead the answer and worked solution →Some cats exist. All cats are pets. All pets are animals. I: All cats are animals. II: Some animals are cats.Read the answer and worked solution →Statements: All roses are flowers. No flower is tree. Conclusions: (I) No rose is tree. (II) All trees are roses.Read the answer and worked solution →Statements: Some pens are books. All books are pencils. Conclusions: (I) Some pens are pencils. (II) No pen is pencil.Read the answer and worked solution →Statements: All cups are plates. No plate is spoon. Conclusions: (I) No cup is spoon. (II) Some spoons are cups.Read the answer and worked solution →Statements: All birds fly. No bird is reptile. Conclusions: (I) No reptile is bird. (II) All reptiles fly.Read the answer and worked solution →Statements: Some tables are desks. Some desks are chairs. Conclusions: (I) All tables are chairs. (II) No chair is table.Read the answer and worked solution →Some dogs exist. All dogs are pets. All pets are animals. I: All dogs are animals. II: Some animals are dogs.Read the answer and worked solution →

Worked practice questions

Statements: All cats are mammals. All mammals are animals. Conclusion: All cats are animals.

  1. Cannot say
  2. Does not follow
  3. Partially follows
  4. Conclusion follows
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Correct answer: D. Conclusion follows

**Classic syllogism:** A ⊂ B, B ⊂ C → A ⊂ C. Cats ⊂ mammals ⊂ animals → cats ⊂ animals. Conclusion validly follows.

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Statements: Some dogs are brown. All brown things are animals. Conclusion: Some dogs are animals.

  1. Follows
  2. Both follow
  3. Does not follow
  4. Cannot say
Show answer and solution

Correct answer: A. Follows

Some dogs are brown; all brown things are animals → those brown dogs are animals → some dogs are animals. Valid conclusion.

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Statements: No teachers are lazy. Some teachers are intelligent. Conclusion: Some intelligent are not lazy.

  1. Does not follow
  2. Follows
  3. Random
  4. Cannot determine
Show answer and solution

Correct answer: B. Follows

Some teachers are intelligent (call them set X). All teachers are not lazy. So X (which is teachers) is also not lazy. **Hence 'some intelligent are not lazy' follows.**

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