Seating Arrangement Setup
The problem describes five people: Q, R, S, T, and U. They are sitting in a single row and all are facing the same direction, North. We are given specific placement clues relative to each other and need to find who is at the far left end of the row.
Analyzing the Clues for Placement
Let's break down the given information step-by-step:
- Neighbour Clue 1: "S is an immediate neighbour of both T and R." This tells us that S must be sitting directly between T and R. The sequence must look like either TSR or RST.
- Neighbour Clue 2: "R is an immediate neighbour of Q." This means R and Q are sitting next to each other. The sequence must be RQ or QR.
- Position Clue: "Q is at the extreme right end of the row." This is a fixed point. Since everyone faces North, the extreme right is the end position on the right side.
Determining the Final Arrangement
We can determine the seating order using the clues:
- Place Q: Q is at the extreme right end. Let's represent the row with 5 slots from left (1) to right (5). Q is in slot 5.
Row:
_ _ _ _ Q - Place R: R is next to Q. Since Q is at the end (slot 5), R must be in slot 4.
Row:
_ _ _ R Q - Place S and T: From Clue 1, S is between T and R. Since R is in slot 4, S must be in slot 3 to be next to R. T must then be next to S, placing T in slot 2. This forms the T-S-R sequence required.
Row:
_ T S R Q - Place U: Only one person (U) and one slot (slot 1, the extreme left) remain. U must therefore be in slot 1.
Final Row:
U T S R Q
The complete arrangement from left to right is U, T, S, R, Q.
Identifying the Leftmost Person
Looking at the final arrangement U T S R Q, the person occupying the first position (the extreme left end) is U.
Important Questions from Linear Arrangement
M, N, L, O, Q and H are sitting in a row. Q and H are in the centre. M and N are at the ends. L is sitting to the immediate left of N. Who is to the right of M?
Five friends, Shruti, Shreya, Anup, Ankit and Kiran, are sitting in a row facing towards the south. Shruti is between Shreya and Anup. Kiran and Shreya are sitting at the extreme ends of the west and east, respectively. Who is sitting in the middle?
Five students are standing in a line. Suman is standing next to Pranav but not next to Deena. Kumar is standing next to Raju, who is standing on the extreme left, and Deena is not standing next to Kumar.
Who is standing in the middle?Eight friends, A, B, C, D, E, F, G and H, are sitting in a straight line, all facing the north. F is sitting between D and G. B is sitting between H and A. E is third to the left of G. G is sitting at one of the corners. H is third to the left of C. Who is sitting between A and E?
Five students are sitting in a row. Akbar is to the left of the person sitting in the middle, but to the right of Sekar. Prakash is to the right of Deva, and Ram is to the right of Prakash. Ram is second from the person sitting in the middle. Who is the person sitting in the middle?
