Question 1
Six persons R, P, T, U, Q and S are sitting in a row. Some are facing North and some are facing South.
R sits third from the left end facing North. P sits second to the right of R and faces opposite direction.
T sits at the left extreme end facing South. U sits immediately to the left of P facing North.
S sits at the right extreme end.
Who sits between T and R?
Solution Approach:
Step 1: Mark directions
↑ = North facing, ↓ = South facing
Step 2: Apply position-based conditions
- R sits third from the left end facing North (↑) → Position 3
- T sits at the left extreme end facing South (↓) → Position 1
Position: T(↓) _ R(↑) _ _ _
Step 3: Apply relative positioning
- P sits second to the right of R (pos 3) → Position 5
- P faces opposite direction to R (North) → P faces South (↓)
- U sits immediately to the left of P (pos 5) facing North (↑) → Position 4
Position: T(↓) _ R(↑) U(↑) P(↓) _
Step 4: Fill remaining positions
Remaining persons: Q, S
Position 2 gets Q, Position 6 gets S
Final Arrangement:
Pos: T(↓) Q(↑) R(↑) U(↑) P(↓) S(↑)
Verification:
✓ R at pos 3, facing North
✓ P at pos 5 (second right of R), facing South (opposite of R)
✓ T at pos 1 (left extreme), facing South
✓ U at pos 4 (immediately left of P), facing North
Person between T (pos 1) and R (pos 3): pos 2 = Q
Answer: Q sits between T and R.
Step 1: Mark directions
↑ = North facing, ↓ = South facing
Step 2: Apply position-based conditions
- R sits third from the left end facing North (↑) → Position 3
- T sits at the left extreme end facing South (↓) → Position 1
Position: T(↓) _ R(↑) _ _ _
Step 3: Apply relative positioning
- P sits second to the right of R (pos 3) → Position 5
- P faces opposite direction to R (North) → P faces South (↓)
- U sits immediately to the left of P (pos 5) facing North (↑) → Position 4
Position: T(↓) _ R(↑) U(↑) P(↓) _
Step 4: Fill remaining positions
Remaining persons: Q, S
Position 2 gets Q, Position 6 gets S
Final Arrangement:
Pos: T(↓) Q(↑) R(↑) U(↑) P(↓) S(↑)
Verification:
✓ R at pos 3, facing North
✓ P at pos 5 (second right of R), facing South (opposite of R)
✓ T at pos 1 (left extreme), facing South
✓ U at pos 4 (immediately left of P), facing North
Person between T (pos 1) and R (pos 3): pos 2 = Q
Answer: Q sits between T and R.