Verbal Reasoning - Syllogism - Discussion

Discussion Forum : Syllogism - Syllogism 2 (Q.No. 1)
Directions to Solve
In each of the following questions two statements are given. Which are followed by four conclusions (1), (2), (3) and (4). Choose the conclusions which logically follow from the given statements.

1.

Statements: No door is dog. All the dogs are cats.

Conclusions:

  1. No door is cat.
  2. No cat is door.
  3. Some cats are dogs.
  4. All the cats are dogs.

Only (2) and (4)
Only (1) and (3)
Only (3) and (4)
Only (3)
All the four
Answer: Option
Explanation:
Discussion:
121 comments Page 5 of 13.

Shanu khan said:   6 years ago
The first statement is negative and the other statement is positive and marge and the negative conclusion must be followed & positive conclusion can't be followed ever for this statement.

No, the door is Cat true and we can also read from the back.

No Cat is door because in the negative statement no is hidden so statement 1st and 2nd both are followed.

Shubham Shirsath said:   7 years ago
I think 1, 2 and 3 should follow.

Amit Yadav said:   7 years ago
I think only 3 follow is the right answer. I agree with the given answer.

Thulasi said:   7 years ago
I think 1 2 and 3 follows.

Praveen said:   7 years ago
I also agree 1st 3 options are right.

Vikas kumhar said:   7 years ago
3 Conclusion is Correct.

But 1 & 2 are either or.

Deepanshu Samdani said:   7 years ago
The answer should be in "some-not" because universal affirmative and universal negative gives the result in the particular negative when the premises is only distributed in the universal negative. So, the correct answer should be the "some cats are not the door".

Aathi said:   7 years ago
Yes, I agree the only option 3 is correct.

Rutiksha said:   7 years ago
Why option B is not correct?

Jyothi said:   8 years ago
If negative conclsion is correct then we have to draw alternative diagram (that is shown in discuss some doors are cats) now check all statements if steatements are follow that diagram is consider now check again all conclusions.

Now conclusion I and II does not follow only conclsion III follows.


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