Verbal Reasoning - Syllogism - Discussion

Discussion Forum : Syllogism - Syllogism 1 (Q.No. 7)
Directions to Solve

In each of the following questions two statements are given and these statements are followed by two conclusions numbered (1) and (2). You have to take the given two statements to be true even if they seem to be at variance from commonly known facts. Read the conclusions and then decide which of the given conclusions logically follows from the two given statements, disregarding commonly known facts.

Give answer:

  • (A) If only (1) conclusion follows
  • (B) If only (2) conclusion follows
  • (C) If either (1) or (2) follows
  • (D) If neither (1) nor (2) follows and
  • (E) If both (1) and (2) follow.

7.

Statements: All the windows are doors. No door is a wall.

Conclusions:

  1. Some windows are walls.
  2. No wall is a door.

Only (1) conclusion follows
Only (2) conclusion follows
Either (1) or (2) follows
Neither (1) nor (2) follows
Both (1) and (2) follow
Answer: Option
Explanation:
Discussion:
69 comments Page 5 of 7.

Sachin said:   10 years ago
How only 2nd follow can someone explain by Raval notations?

Abhinav said:   1 decade ago
Answer is C according to special case.

Mamta said:   1 decade ago
My answer is both not follow. How only 2nd follow?

Saurav said:   1 decade ago
The answer can't be B as the middle term should have been eliminated.

Sushmitha said:   8 years ago
The correct answer is option D.

Gaurav Mann said:   1 decade ago
2nd conclusion is correct because all window is door & no door is wall so positive relation between wall & window is not possible. Only negative relation can be established.

Dr. E Rajeevan said:   1 decade ago
2nd conclusion is correct, not using the rules of syllogism, but using the rules of conversion.

Shubhakant said:   1 decade ago
'door' in a middle word. We can't use it in conclusion.

Aaaa said:   1 decade ago
2nd conclusion is converse of 2nd statement.

Suresh said:   1 decade ago
Hi.The ans is B.
All the windows are door.
Converse:Some door are Windows.
No door is wall.
Converse:No wall is door.
Mediate deduction:No Window is Wall.


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