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- Question
- Statement:
All philosophers are men. Socrates was a philosopher. Conclusion:
I. Socrates was a man.
II. Women cannot become philosophers.
Options- A. Only I is valid
- B. Only II is valid
- C. Both are not valid
- D. Both are valid
- Correct Answer
- Both are valid
ExplanationAll philosophers without exception are men. So no woman can be philosopher.
- 1. Statements:
All University Professors have a doctorate degree. X is a lady professor.
Conclusions:
I. X does not have a Doctorate degree.
II. Only men Professors have a Doctorate degree.
Options- A. Both I & II follow
- B. Only I follows
- C. Neither I nor II follows
- D. Only II follows Discuss
- 2. Statements:
(a) Some politicians are social workers.
(b) All doctors are social workers.
Conclusions:
I. Some doctors are politicians
II. Some social workers are doctors as well as politicians
Options- A. Neither Conclusion I nor II follows.
- B. Only Conclusion II follows.
- C. Both Conclusions I and II follow.
- D. Only Conclusion I follows. Discuss
- 3. Statements:
I. Some birds are clouds.
II. Horse is a bird.
Conclusions:
I. Some clouds are birds.
II. Horse is not a cloud.
Options- A. Conclusion I follows.
- B. Conclusion II follows.
- C. Either conclusion I or II follows.
- D. Neither conclusion I nor II follows. Discuss
- 4. Statements:
(a) All books are novels.
(b) Some novels are poems.
Conclusions:
(I) Some books are poems.
(II) Some poems are novels.
Options- A. Only conclusion (II) follows
- B. Neither conclusion (I) nor (II) follows
- C. Both conclusions (I) and (II) follow
- D. Only conclusion (I) follows Discuss
- 5. Two statements are followed by alternatives. Mark the correct alternative that follows :
All Asians are wise.
All Chinese are Asian Therefore,
Options- A. Some Chinese are wise
- B. All wise are Chinese
- C. All Chinese are wise
- D. No conclusion follows Discuss
- 6. No monkey can sing but some monkeys can talk.
If the above statement is correct, then which of the following is correct?
Options- A. Some monkeys may sing
- B. All monkeys can't sing
- C. All monkeys can't talk
- D. All monkeys can talk Discuss
- 7. Statements:
(A) No cow is a chair.
(B) All chairs are tables.
Conclusions:
I. Some tables are chairs.
II. Some tables are cows.
III. Some chairs are cows.
IV. No table is a cow.
Options- A. Either II or III follow
- B. Either II or IV follow
- C. Only I follows
- D. \All conclusions follow Discuss
- 8. Statements:
No man is intelligent.
All women are intelligent.
Conclusions:
I. No man is a woman.
II. No woman is a man.
Options- A. Only I follows
- B. Only II follows
- C. Both I & II follow
- D. Neither of them follow Discuss
- 9. Statements:
All carts are cars.
All cars are trains. So
Conclusions:
I. All carts are trains.
II. All trains are carts.
Options- A. Only conclusion I follows
- B. Only conclusion II follows
- C. Both conclusions I and II follow
- D. Neither conclusion I nor conclusion II follows Discuss
- 10. Statements:
All soldiers are men.
Some citizens are soldiers.
Conclusions:
I. Some citizens are men.
II. All soldiers are citizens.
Options- A. Only I follows
- B. Neither I nor II follows
- C. Only II follows
- D. Both I and II follow Discuss
Syllogism problems
Search Results
Correct Answer: Neither I nor II follows
Explanation:
Both the premises are Universal Affirmative. We can align the premises by changing their order. Thus,
X is a lady professor. ? All University professors have a doctorate degree.
We know that,
A + A ? A - type conclusion. Thus our derived conclusion would be "X has a doctorate degree".
Correct Answer: Neither Conclusion I nor II follows.
Explanation:
First Premise is Particular Affirmative (I ? type).
Second Premise is Universal Affirmative (A ? type).
All doctors are social workers. ? Some social workers are politicians.
A + I ? No Conclusion.
Correct Answer: Conclusion I follows.
Explanation:
Statement I is Particular Affirmative (I-type)
Statement II is Universal Affirmative (A-type).
Horse is a bird. ? Some birds are clouds.
A + I ? No Conclusion
Conclusion I is Converse of the Statement I.
Correct Answer: Only conclusion (II) follows
Explanation:
First Premise in Universal Affirmative (A - type).
Second Premise is Particular Affirmative (I - type).
All books are novels. ? Some novels are poems.
A + I ? No Conclusion
Conclusion II is Converse of the second Premise.
Correct Answer: All Chinese are wise
Explanation:
Since both the Premises are Universal Affirmative (A - type) and these can be aligned by changing the order of Premises, the Conclusion should be Universal Affirmative.
All Chinese are Asians. ? All Asians are wise.
Therefore, All Chinese are wise. This is conclusion (3).
Here, it should be noted that the Conclusion given in option (1) is the implication of the derived Conclusion and hence it is also valid.
Correct Answer: All monkeys can't sing
Explanation:
Clearly, all monkeys cannot sign.
Correct Answer:
Explanation:
First Premise is Universal Negative (E-type).
Second Premise is Universal Affirmative (A-type).
No cow is chair. ? All chairs are tables.
E + A ? O1 ? type of Conclusion "Some tables are not cows."
Conclusion I is Converse of the second Premise. Therefore, Conclusion I follows.
Conclusions II and IV form Complementary Pair. Therefore, either Conclusion II or IV follows. Thus, Conclusion I and Conclusion II or IV follow.
There is no such options.
Correct Answer: Both I & II follow
Explanation:
First Premise is Universal Negative (E-type).
Second Premise is Universal Affirmative (A-type).
We can align the Premises by Converting the first Premise and changing their order. Thus,
All women are intelligent. ? No intelligent is a man .
we know that,
A + E ?E-type Conclusion Thus our derived Conclusion would be:
"No woman is a man"
This is the Conclusion II. Conclusion I is the Converse of this Conclusion.
Therefore, both the Conclusions I and II follow.
Correct Answer: Only conclusion I follows
Explanation:
Both the Premises are Universal Affirmative (A?type).
All carts are cars. ? All cars are trains.
A + A ? A-type of Conclusion
"All carts are trains."
This is Conclusion I.
Correct Answer: Only I follows
Explanation:
We can align the premises by changing their order:
Some citizens are solidiers. ? All solidiers are men.
We know that
I + A ? I type conclusion Thus, our derived conclusion would be:
"Some citizens are men".
This is conclusion on I.
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