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Question

Three Statements are given followed by three Conclusions I, II and III. Assuming the Statements to be true, even if they seem to be at variance with commonly known facts, decide which of the given Conclusion(s) logically follow/follows from the Statements.
Statements:
All chairs are tables.
Some tables are rooms.
All rooms are walls.
Conclusions:
I. Some walls are chairs.
II. Some rooms are chairs.
III. Some walls are tables.
Choose the correct answer:

The correct answer is
Only Conclusion III follows

Syllogism Analysis: Statements and Conclusions

This problem involves logical reasoning, specifically analyzing syllogisms. A syllogism consists of statements (premises) and conclusions. We need to determine if the conclusions logically follow from the given statements, assuming the statements are true.

Analyzing the Statements

Let's break down each statement:

  • Statement 1: All chairs are tables. This is a universal affirmative statement. It means the entire set of 'chairs' is contained within the set of 'tables'. If something is a chair, it must also be a table.
  • Statement 2: Some tables are rooms. This is a particular affirmative statement. It means there is at least one 'table' that is also a 'room'. There is an overlap between the set of 'tables' and the set of 'rooms'.
  • Statement 3: All rooms are walls. This is a universal affirmative statement. It means the entire set of 'rooms' is contained within the set of 'walls'. If something is a room, it must also be a wall.

Evaluating the Conclusions

Now, let's see if the conclusions can be logically derived from the statements.

Conclusion I: Some walls are chairs.

We know that all chairs are tables (Statement 1) and some tables are rooms (Statement 2), and all rooms are walls (Statement 3).

From Statements 2 and 3, we can deduce that 'Some tables are walls'. This is because the tables that are rooms must also be walls, as all rooms are walls. However, Statement 1 tells us 'All chairs are tables'. This doesn't guarantee that the specific tables which are also rooms (and therefore walls) are the same tables that are chairs. The set of chairs could be entirely separate from the portion of tables that overlap with rooms/walls.

Therefore, Conclusion I (Some walls are chairs) does not necessarily follow.

Conclusion II: Some rooms are chairs.

We know 'All chairs are tables' (Statement 1) and 'Some tables are rooms' (Statement 2).

This situation is similar to Conclusion I. The 'some tables' that are 'rooms' might not include any of the 'chairs'. The group of chairs is a subset of tables, and the group of rooms overlaps with tables, but the overlap might occur in a part of the 'tables' set that does not contain any 'chairs'.

Therefore, Conclusion II (Some rooms are chairs) does not necessarily follow.

Conclusion III: Some walls are tables.

We analyze Statements 2 and 3:

  • Statement 2: Some tables are rooms. (There's an overlap between Tables and Rooms)
  • Statement 3: All rooms are walls. (The set of Rooms is entirely within the set of Walls)

Since some tables belong to the category 'rooms', and every member of the 'rooms' category also belongs to the 'walls' category, it logically follows that those specific tables (which are rooms) must also be walls. This establishes a direct link: the tables that are rooms are also walls.

Therefore, Conclusion III (Some walls are tables) logically follows from Statements 2 and 3.

Final Determination

Based on the analysis:

  • Conclusion I: Does not follow.
  • Conclusion II: Does not follow.
  • Conclusion III: Follows.

Thus, only Conclusion III logically follows from the given statements.

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Important Questions from Syllogism

  1. Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements.

    Statements:

    All fruits are stems.

    Some fruits are leaves.

    Conclusions:

    I. Some stems are leaves.

    II. Some leaves are fruits.

  2. Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements.

    Statements:

    Some students are players.

    All players are male.

    Conclusions:

    I. All males are players.

    II. Some males are students.

  3. Read the given statement(s) and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statement(s).

    Statements:

    Some Queens are kings.

    All kings are officers.

    No officer is architect.

    Conclusions:

    I. Some officers are queens.

    II. No king is architect.

  4. Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements.

    Statements:

    No creative is an employer.

    All experts are creative.

    All workers are experts.

    Conclusions:

    I. No employer is an expert.

    II. No worker is an employer.

  5. Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements.

    Statements:

    Some actors are choreographers.

    All choreographers are producers.

    Not a single producer is a director.

    Conclusions:

    I. Some actors are directors.

    II. Not a single actor is a director.

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