Question

Five friends P, Q, R, S and T are sitting in a row facing north. Q is to the immediate right of P. T is at the extreme left. R sits between Q and S.
Who is sitting at the extreme right?

• A. P
• B. Q
• C. R
• D. S

Hint:

Start arrangements by placing fixed positions first (like "T is at the extreme left").
Create small blocks of adjacent people from the clues (like [PQ] and [QRS]), then merge these blocks to easily find the complete arrangement.

Answer 1

The Correct Option is D

Step 1: Understanding the Question:
This is a linear seating arrangement puzzle from Logical Reasoning.
Five individuals (P, Q, R, S, T) are seated in a single row facing North.
Facing North means that the "left" of the row corresponds to our left, and the "right" of the row corresponds to our right.
We need to determine who is sitting at the extreme right position.

Step 2: Detailed Explanation:
$\bullet$ Let us represent the five positions in the row from left to right as:
\[ \text{Position } 1, \quad \text{Position } 2, \quad \text{Position } 3, \quad \text{Position } 4, \quad \text{Position } 5 \]
$\bullet$ Let us apply the given clues step-by-step to place the friends:
1. Clue 1: "T is at the extreme left."
$\bullet$ This means T must be placed at Position 1.
$\bullet$ Our row now looks like this:
\[ \text{T}, \quad _, \quad _, \quad _, \quad _ \]
2. Clue 2: "Q is to the immediate right of P."
$\bullet$ This indicates P and Q must sit next to each other in the order "P - Q". This forms a block:

[PQ].
3. Clue 3: "R sits between Q and S."
$\bullet$ This means R is flanked by Q on one side and S on the other.
$\bullet$ Since we have the block

[PQ], Q is already to the right of P.
$\bullet$ To place R between Q and S, R must be placed to the immediate right of Q, and S must be placed to the immediate right of R.
$\bullet$ This gives us a combined sequence:

[P - Q - R - S].
$\bullet$ Now we have a continuous block of 4 people:

P, Q, R, S in that specific order.
$\bullet$ Since T occupies Position 1, the remaining four positions (2, 3, 4, 5) must be filled by this block of 4 people:
$\bullet$ Position 2 = P
$\bullet$ Position 3 = Q
$\bullet$ Position 4 = R
$\bullet$ Position 5 = S
$\bullet$ The complete seating arrangement from left to right is:
\[ \text{T}, \quad \text{P}, \quad \text{Q}, \quad \text{R}, \quad \text{S} \]
$\bullet$ From this arrangement, we can see that S is sitting at Position 5, which is the extreme right.

Step 3: Final Answer:
S is sitting at the extreme right of the row.
Therefore, the correct option is (D).