Let’s arrange step by step.
We have 6 seats in a row (facing north):
Positions: 1 2 3 4 5 6
Place Y
“Only two people sit to the left of Y”
→ Y is at position 3
Place Z
“Only two people sit between Y and Z”
→ Y at 3 → Z can be at position 6 (3 people apart → 2 in between)
Place X
“Only one person sits between Z and X”
→ Z at 6 → X must be at position 4
Place R and S
“R sits immediately to the left of S”
Remaining positions: 1, 2, 5
Possible pairs:
(1,2) → R=1, S=2
(2,5) not adjacent
(5,?) no space
So:
R = 1
S = 2
Remaining person T
Only position left = 5
Final arrangement:
1 R
2 S
3 Y
4 X
5 T
6 Z
Question:
How many people sit between Y (3) and S (2)?
→ No one sits between them
Final Answer: 0
