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- Question
- Statements:
(a) All pens are pencils.
(b) No pencil is monkey.
Conclusions:
I. No pen is monkey.
II. Some pens are monkeys.
III. All monkeys are pens.
IV. Some monkeys are pens.
Options- A. Either conclusion II or III follows
- B. Either conclusion II or IV follows
- C. Only conclusion I follows
- D. All conclusions follows
- Correct Answer
- Only conclusion I follows
ExplanationFirst Premise is Universal Affirmative (A?type).
Second Premise is Universal Negative (E?type).
All pens are pencils. ? No pencil is monkey.
A + E = E-type of Conclusion "No pen is monkey".
This is Conclusion I. - 1. Statements:
(a) Some skirts are benches.
(b) No bench is a table.
Conclusions:
I. Some skirts are tables.
II. Some benches are skirts.
III. All benches are skirts.
IV. Some tables are skirts.
Options- A. Only I follows
- B. Only II follows
- C. Only II and IV follow
- D. Only I and III follow Discuss
- 2. Statements:
All children are playful.
Some animals are playful.
Conclusions:
I. Some animals are children.
II. Some children are animals.
Options- A. Only I follows
- B. Neither I nor II follows
- C. Only II follows
- D. Both I and II follow Discuss
- 3. Statements:
(i) All radios sold in that shop are of high standard.
(ii) Some of Murphy radios are sold in that shop.
Inferences:
I. All radios of high standard are manufactured by Murphy company,
II. Some of the Murphy radios are of high standard.
III. None of the Murphy radios is of high standard.
IV. Some of the Murphy radios of high standard are sold in that shop.
Options- A. I and II inferences only
- B. II and IV inferences only
- C. I and III inferences only
- D. I and IV inferences only Discuss
- 4. 'All beggars are poor.'
If the above statement is true, which of the following conclusions can be drawn?
Options- A. All those who are poor are beggars.
- B. If A is rich, then A is not a beggar.
- C. If A is not rich, then A is not a beggar.
- D. If A is a beggar, then A is not rich. Discuss
- 5. Statements:
(a) All poets are intelligent.
(b) All singers are intelligent.
Conclusions:
I. All singers are poets.
II. Some intelligent persons are not singers.
Options- A. Only conclusion I follows
- B. Only conclusion II follows
- C. Either conclusion I or II follows
- D. Neither conclusion I nor II follows Discuss
- 6. Statements:
(a) All dogs are rats.
(b) All rats are crows.
(c) All crows are parrots.
Conclusions:
(I) All dogs are parrots.
(II) Some parrots are dogs.
(III) Some crows are dogs.
(IV) All rats are dogs.
Options- A. Only (I) and (II) follow
- B. Only (I), (II) and (III) follow
- C. Either (II) or (IV) follow
- D. Either (I) or (II) or (III) follow Discuss
- 7. Statements:
(a) All animals are dogs.
(b) All dogs are birds.
Conclusions:
I. All animals are birds.
II. All birds are animals.
Options- A. Only Conclusion I follows
- B. Only Conclusion II follows
- C. Both Conclusions I and II follow
- D. Neither Conclusion I nor II follows Discuss
- 8. Statements:
Some phones are watches.
All watches are guns.
Conclusions:
I. All guns are watches.
II. Some guns are Phones.
Options- A. Only I follows
- B. Only II follows
- C. Either I or II follows
- D. Neither I nor II follows Discuss
- 9. Statements:
(a) All students like excursions.
(b) Some students like Laboratory experiments.
Conclusions:
(I) Students who like Laboratory experiments also like excursions.
(II) Some students do not like Laboratory experiments but likes excursion.
Options- A. Only (I) follows
- B. Only (II) follows
- C. Conclusions (I) and (II) follow
- D. Neither (I) nor (II) follows Discuss
- 10. Statement:
Some dogs bark.
All dogs bite.
Conclusions:
I. Those dogs who do not bark, also bite.
II. Those dogs who do not bark, not necessarily bite.
Options- A. Only I follows
- B. Only II follows
- C. Either I or II follows
- D. Neither I nor II follows Discuss
Syllogism problems
Search Results
Correct Answer: Only II follows
Explanation:
First Premise is Particular Affirmative (I - type).
Second Premise is Universal Negative (E - type).
Some skirts are benches. ? No bench is a table.
I + E ? O ? type of Conclusion "Some skirts are not tables."
Conclusion II is Converse of the first Premise.
Correct Answer: Neither I nor II follows
Explanation:
We can align the premises by converting the second premise.
All children are playful. ? some playfuls are animals.
We know that,
A + I ? No conclusion.
Correct Answer: II and IV inferences only
Explanation:
Since some of Murphy radios are sold in that shop which sells high standard radios. Therefore, some of the Murphy radios are of high standard.
Correct Answer: If A is a beggar, then A is not rich.
Explanation:
If A is a beggar, then A is not rich.
Correct Answer: Neither conclusion I nor II follows
Explanation:
Both the Premises are Universal Affirmative (A - type). These two Premises are not aligned. Now take the Converse of one of the Premises to align them.
Correct Answer: Only (I), (II) and (III) follow
Explanation:
All the three Premises are Universal Affirmative (A-type).
All dogs are rats. ? All rats are crows.
A + A ? A-type of Conclusion "All dogs are crows."
Conclusion III is converse of it.
All rats are crows. ? All crows are parrots.
A + A ? A-type of Conclusion "All rats are parrots."
All dogs are crows. ? All crows are parrots.
A + A ? A-type of Conclusion "All dogs are parrots."
This is Conclusion I.
Conclusion II is converse of it.
Correct Answer: Only Conclusion I follows
Explanation:
Both the Premises are Universal Affirmative (A - type).
All animals are dogs. ? All dogs are birds.
A + A ? A-type of Conclusion "All animals are birds."
It is Conclusion I.
Correct Answer: Only II follows
Explanation:
First Premise is Particular Affirmative (I ? type).
Second Premise is Universal Affirmative (A-type).
Some phones are watches. ? All watches are guns.
I + A ? I - type of Conclusion "Some phones are guns".
Conclusion II is Converse of this Conclusion.
Correct Answer: Conclusions (I) and (II) follow
Explanation:
Some is a part of All. Therefore, conclusion I follows. Since all students like excursion, therefore, Conclusion II also follows .
Correct Answer: Only I follows
Explanation:
Only Conclusion I follows :
Some who bark are dogs.
All dogs bite.
It means those dogs who do not bark, also bite.
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