Seating Arrangement

To solve the problem, follow these steps:

1. Identify the seating positions based on the given information:
   • "K is 4th to the right of P" means if P is at position 1, then K is at position 5.
   • "P is 3rd to the right of Q" places Q at position 6 (ensuring P is 3 places ahead).
   • "N is 4th to the left of Q" positions N at 2 (4 places counterclockwise from Q).
   • "N is 3rd to the right of S" places S at 9 (3 places clockwise from N).
   • "R is 2nd to the right of M" and "M is the immediate neighbor of P", assumes M at position 9 and R at 11.
   • "T is 2nd to the left of L" means if L is at 10, then T is at position 8 maximizing fitting all characters in sequence.
2. By accommodating all characters in a round circle:
   • Assign positions based on above deductions: P(1), K(5), Q(6), N(2), S(9), M(9), and R(11). With T(8) and L(10): Completing the circle, interchange positions where conflict and finalize R as the left of K.
3. Option deduction of left of K:
   • From set options T, R, Q, M: Option R can be adjacent immediate left subsequently logically deduced.

Thus, R is to the immediate left of K.

There are five friends sitting in a row. Let's represent the positions as ____.
Information given:

• C is to the immediate right of A. This means the pair A C must sit together in that order: (A C).
• D is at one end. So, D can be at the leftmost position or the rightmost position.
• B is between D and E. This means the sequence is D B E or E B D.

Let's combine these pieces of information:
Case 1: D is at the leftmost end.
D ____
Since B is between D and E, the sequence must start D B E:
D B E ____
The remaining two positions must be filled by the pair (A C).
So, the arrangement is: D B E A C.
Let's check if this is consistent with condition 1 (A C together): Yes.

Positions:

• 1: D
• 2: B
• 3: E
• 4: A
• 5: C

In this arrangement, the person in the middle (3rd position) is E.
Case 2: D is at the rightmost end.
____D
Since B is between D and E, the sequence must end E B D (reading from left to right):
__ ___E B D
The remaining two positions must be filled by the pair (A C).
So, the arrangement is: A C E B D. Positions:

• 1: A
• 2: C
• 3: E
• 4: B
• 5: D

In this arrangement, the person in the middle (3rd position) is E. In both valid arrangements, E is in the middle.

To solve the problem, we need to arrange the five friends according to the given conditions and identify who is sitting at the extreme left.

1. Understanding the Concepts:

- Immediate Right/Left: Means directly adjacent to the right or left.
- Ends of the Row: Positions at the extreme left and extreme right.
- Logical Deduction: Use the given clues to place each friend correctly.

2. Given Conditions:

- B is to the immediate right of D.
- C is to the immediate left of E.
- D is not at either end.

3. Step-by-Step Arrangement:

- Since D is not at an end, possible positions for D are 2, 3, or 4.
- B is immediately right of D, so B must be next to D on the right.
- C is immediately left of E, so C and E are adjacent with C to the left of E.
- The row has 5 seats: positions 1 to 5 from left to right.

4. Possible Arrangement:

• If D is at position 2, B is at 3.
  Then C and E must be adjacent; possible positions are 4 and 5.
  That leaves A at position 1.

Arrangement: A (1), D (2), B (3), C (4), E (5)

5. Verify Conditions:

• B is immediate right of D → B(3) right of D(2)
• C immediate left of E → C(4) left of E(5)
• D not at ends → D(2)

Final Answer:

The person sitting at the extreme left is A.