Verbal Reasoning - Syllogism - Discussion

Discussion Forum : Syllogism - Syllogism 3 (Q.No. 6)
Directions to Solve
In each of the following questions there are three statements. Which are followed by three or four conclusions. Choose the conclusions which logically follow from the given statements.

6.

Statements: Some rats are cats. Some cats are dogs. No dog is cow.

Conclusions:

  1. No cow is cat.
  2. No dog is rat.
  3. Some cats are rats.

Only (1)
Only (1) and (2)
Only (1) and (3)
Only (2) and (3)
Only (3)
Answer: Option
Explanation:
Discussion:
45 comments Page 5 of 5.

Siva said:   1 decade ago
Venn diagrams are right. But why we choose second Venn diagram? if we choose first one no dog is rat statement gives right. So 2 and 3 statements are conclusions.

Tony said:   1 decade ago
No cow is a cat. is this statement not right ?

For if we include the Venn of cow to that of rat or cat, we are making an assumption. And we are not supposed to make assumptions in Venn diagrams, rather draw only what is given according to the statements.

My Venn diagram did not match with those given here, but until now the answers were matching, except for this one : (.

Sundar said:   1 decade ago
@Rajkumar Verma

The answer for your question is 'Conclusion 1 not follows.'.

--------------------------

@All

Now, I'm coming to given question.

The conclusion(3) "Some cats are rats" is just the convergence of the given statement "Some rats are cats".

So conclusion(3) follows.

According to the given diagrams, conclusion (1) and (2) are not follows logically (in all situation).

Therefore, the given answer "Only 3" is correct.

Rajkumar verma said:   1 decade ago
I want to ask a question:

Statements :
1) No train is bus
2) No jeep is train
3) Some jeep are big.

Conclusion:
1) Some big are not train.

Jenny said:   1 decade ago
All, 1, 2 and 3 are not correct?


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