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