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 2 of 13.

Nikky said:   1 decade ago
Ya its sure that ans should be 1, 2&3.

Rajeshwari said:   1 decade ago
I don't agree with you all. We cannot say the options 1 and 2 because the relationship between the doors and the cats is not given in the statements. All dogs are cats doesn't mean that all cats are dogs. Some cats are dogs and the others may be doors. When we are not sure we cannot say options 1 and 2. We are sure only about the option 3. So only 3 follows.

Amit said:   1 decade ago
I agree with rajeshwari.

Thoi said:   1 decade ago
I learned that negative statement should have negative conclusion only. So I find no conclusion.

Kaustub said:   1 decade ago
I agree with Mounika

Playboy said:   1 decade ago
I agree with monicka, rajeswari.

Arijit said:   1 decade ago
@Rajeswari is right.

Manoj kumar said:   1 decade ago
By Raval's notation statements are DD / DgDg and DgDg - C now conclusions can be deduced at glance.

First conclusion DD / CC is straightaway ruled out because we don't have any CC in statement.

Second conclusion CC / DD is also ruled out.

Third conclusion C - Dg follows from statement DgDg - C on reverse reading.

Fourth conclusion CC - Dg is ruled out straightaway because of no CC in statement notations.

Rashmi said:   1 decade ago
@manoj is right.

Varun said:   1 decade ago
Yes answer is 3


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