Verbal Reasoning - Syllogism - Discussion

The 1st statement is of 'E' type, means NO type.

The 2nd statement is of 'A' type means ALL type.

Now E+A always results in O*, which means in the conclusion 2nd statement's Predicate will become the conclusion's Subject and the 1st statement's Subject will become conclusion's Predicate.

And this type of conclusion always results in 'Some Not'.

Therefore the right conclusion would be 'Some cats are not dogs'.

Conclusion four may be also correct if all the dogs are cat then from venn diagram it also happens that dogs completely overlap on dogs and in that case the all the cats are dogs.

I fully agree with @Rahul.

The 1st statement is of 'E' type, means NO type.
The 2nd statement is of 'A' type means ALL type.

Now E+A always results in O*, which means in the conclusion 2nd statement's Predicate will become the conclusion's Subject and the 1st statement's Subject will become conclusion's Predicate.

And this type of conclusion always results in 'Some Not'.

Therefore the right conclusion would be 'Some cats are not dogs'.

'Some cats are not dogs' is not there in any of the conclusion.

But conclusion 3 is the converse of the second premise. So 3 is the right answer.

Hope this will help you:

a-> universal affirmative statement. eg. all men r mortal.
e-> universal negative statement. eg. no men r animal.
i-> particular affirmative statement. eg. some men r wise.
o-> particular negative statement. eg. some men r not animal.
Now how to use in statements. easy way 4 you to remember the words(select only vowels).

Paragraph-> a+a=a.
Agree-> a+e=e.
Editor-> e+i=o.
Reason-> e+a=o.
Britain-> i+a=i.
Video-> i+e=o.

So in above e.g. its. e+a=o. but there is not sch a option and option 3 is correct. therefore only option 3. Hope you got it. If there is error let me know.

Option 1 and 2 are negatives, and it is true, if negative conclusions are true take its negation. If negation is true then negative statements will not follows, otherwise it follows.

Only conclusion (3) follow because,

According to 1 Venn diagram its follow the conclusion. But in 2 Venn diagram it does't. That's why answer is wrong.

Same its with conclusion (2) and conclusion (2) is also wrong.

Answer is 1,2,3 follows then how only 3?

Can anyone explain how only 3rd option? According to me 1, 2, 3 answer!

The statement clearly says that no door is dog but it didn't specify that no cat is door. So here door can be cat or cat can be door. So only 3 follows.

The above first statement is not clear then how can we decide the answer? There may be a chance to be some cats can be doors and can't be, will you please tell me the proper solution for this?