1. Sitting Arrangements: Introduction

Sitting arrangements are logical reasoning problems where individuals or objects must be positioned based on specific conditions. These arrangements can be linear (rows) or circular, and the goal is to determine the exact positions using given clues.

2. Types of Sitting Arrangements

Sitting arrangements can primarily be categorized into:

• Linear Arrangement: Objects/people are seated in a straight line.
• Circular Arrangement: Objects/people are seated in a circular pattern.
• Rectangular/Square Arrangement: Objects/people are seated around a square/rectangle.

3. Key Terminologies

• Facing: Direction (towards center, away from center, left/right).
• Adjacent: Sitting next to each other.
• Opposite: Sitting directly across.

4. Steps to Solve Sitting Arrangement Problems

• Read the problem carefully and note all clues.
• Draw a rough diagram based on the arrangement type (linear/circular).
• Fix the certain positions first, then place others logically.
• Use elimination to rule out incorrect placements.
• Double-check the arrangement with all clues.

5. Example: Linear Arrangement

Problem Statement: Five people A, B, C, D, and E are sitting in a row facing north. The conditions are:

• B sits second to the right of A.
• C sits at one end of the row.
• D is not an immediate neighbor of B.
• E sits to the immediate left of D.

5.1 Solution

1. Draw a line with 5 positions labeled (1 to 5):
   _ _ _ _ _
2. Place C at one end (position 1):
   C _ _ _ _
3. B is second to the right of A → A must be in position 2 or 3.
4. Place A in position 2 → B in position 4:
   C A _ B _
5. E sits to the immediate left of D → Place E and D in positions 3 and 5:
   C A E B D

Final Arrangement: C, A, E, B, D.

6. Example: Circular Arrangement

Problem Statement: Six people P, Q, R, S, T, and U are sitting around a circular table facing the center. The conditions are:

• P is sitting to the immediate right of Q.
• R sits opposite Q.
• S sits between T and U.

6.1 Solution

1. Draw a circular table with 6 positions.
2. Place Q and R opposite to each other.
3. P sits to the immediate right of Q.
4. Place S between T and U logically.

Final Arrangement:

   T
U     S
R     Q
   P