Amazon MBA: Syllogism 2 — Questions and Answers
Question 1: Statements: All pens are books. All books are tables. Conclusion: All pens are tables.
- Conclusion follows (Correct answer)
- Conclusion does not follow
- Data inadequate
- Conclusion is contradictory
Correct answer: Conclusion follows
If all pens are books and all books are tables, then all pens must be tables.
Question 2: Statements: Some cats are dogs. All dogs are animals. Which conclusion follows?
- All cats are animals
- Some cats are animals (Correct answer)
- No cat is an animal
- Some animals are not cats
Correct answer: Some cats are animals
The cats that are dogs are animals, so some cats are animals.
Question 3: Statements: No bird is a fish. All sparrows are birds. Conclusion: No sparrow is a fish.
- Conclusion follows (Correct answer)
- Conclusion does not follow
- Data inadequate
- Conclusion is probable only
Correct answer: Conclusion follows
Sparrows are birds and no bird is a fish, so no sparrow is a fish.
Question 4: Statements: All flowers are red. Some red things are roses. Conclusion: Some flowers are roses.
- Conclusion follows
- Conclusion does not follow (Correct answer)
- Conclusion is definite
- Conclusion always true
Correct answer: Conclusion does not follow
The roses among red things need not be the flowers, so no link is guaranteed.
Question 5: Statements: Some pens are inks. No ink is a pencil. Which conclusion is valid?
- All pens are pencils
- Some pens are not pencils (Correct answer)
- All inks are pens
- No pen is an ink
Correct answer: Some pens are not pencils
Pens that are inks cannot be pencils, so some pens are not pencils.
Question 6: Statements: All managers are leaders. Some leaders are honest. Conclusion: Some managers are honest.
- Conclusion follows
- Conclusion does not follow (Correct answer)
- Conclusion is certain
- Both follow
Correct answer: Conclusion does not follow
The honest leaders may all lie outside the manager group, so no certainty.
Question 7: Statements: All squares are rectangles. All rectangles are shapes. Conclusion: Some shapes are squares.
- Conclusion follows (Correct answer)
- Conclusion does not follow
- Data inadequate
- Conclusion is contradictory
Correct answer: Conclusion follows
All squares are shapes, so by conversion some shapes are squares.
Amazon MBA: Syllogism 2
Statements: All pens are books.
All books are tables.
Conclusion: All pens are tables.