Seating Arrangement - Advanced Level: opposite positions ADVANCED

Level up your seating arrangement skills with this challenging mix. 20 advanced-level problems await in Worksheet 24 of 30. Focus area: opposite positions. Learn row seating, table arrangement, position puzzles through systematic practice. Designed for advanced learners seeking complex scenarios and multi-step problems.

πŸ“ Worksheet 24 of 30 β€’ 20 questions β€’ ⏱️ Estimated time: 20 minutes β€’ 🎯 Advanced level

What you'll learn in this worksheet:
Your progress through Seating Arrangement
Worksheet 24 of 30 (80% complete)

Question 1

Six persons D, A, B, F, C and E are sitting around a circular table facing the center. D sits second to the left of A. B sits opposite to D. F sits immediately to the right of B. E is not adjacent to F. Who sits opposite to A?
Solution Approach:

Step 1: Draw circular diagram
6 persons facing center. Opposite positions are 3 seats apart.
Number positions 1–6 clockwise.

Step 2: Place definite positions
- Fix D at position 1 (reference point)
- D is second to the LEFT of A β†’ A is 2 clockwise from D
pos[A] = 3
- B sits OPPOSITE D (pos 1) β†’ pos 4
- F sits immediately to the right of B (pos 4) β†’ pos 5

Step 3: Resolve remaining positions
Remaining persons: E, C β†’ remaining seats: [2, 6]
E is NOT adjacent to F (pos 5).
Adjacent to pos 5: pos 4 and pos 6.
Therefore E β†’ pos 2, and C β†’ pos 6.

Final Arrangement (clockwise):
pos1:D β†’ pos2:E β†’ pos3:A β†’ pos4:B β†’ pos5:F β†’ pos6:C
(All facing center)

Opposite pairs: pos1↔pos4, pos2↔pos5, pos3↔pos6

A is at pos 3 β†’ opposite = pos 6 = C

Answer: C sits opposite to A.

Question 2

Three parallel rows of chairs. Row 1 has B, C, D, A facing South. Row 2 has S, P, Q, R facing North. Row 3 has X, Y, W, Z facing South. Row 2 is between Row 1 and Row 3. Persons in Row 1 face persons in Row 2, and persons in Row 2 face persons in Row 3. B faces S who faces X. C sits to the left of B in Row 1. P faces C and also faces Y. Q sits second to the right of P in Row 2. Who sits at the right extreme of Row 3?
Solution Approach:

Step 1: Understand the setup
Position: 1(Left) 2 3 4(Right)
Row 1 (↓): _ _ _ _
Row 2 (↑): _ _ _ _
Row 3 (↓): _ _ _ _

Facing: Row 1 pos i faces Row 2 pos i; Row 2 pos i faces Row 3 pos i.
(Using viewer's perspective: left=position 1, right=position 4)

Step 2: Apply facing relationships
- B faces S who faces X: all three in the SAME vertical column.
Place at position 2:
Row1: _ B _ _
Row2: _ S _ _
Row3: _ X _ _

Step 3: Apply left-right conditions
- C sits to the left of B(pos 2) in Row 1 β†’ C at position 1
Row1: C B _ _

Step 4: Second facing relationship
- P faces C(Row1 pos1) β†’ P at Row2 position 1
- P faces Y β†’ Y at Row3 position 1
Row1: C B _ _
Row2: P S _ _
Row3: Y X _ _

Step 5: Apply relative positioning in Row 2
- Q sits second to the right of P(pos1): 1+2=3 β†’ Q at Row2 position 3
Row2: P S Q _
Q faces Row1 pos3 β†’ D at Row1 pos3 βœ“
Q faces Row3 pos3 β†’ W at Row3 pos3 βœ“

Step 6: Fill remaining positions
Remaining: Row1 pos4=A, Row2 pos4=R, Row3 pos4=Z

Final Arrangement:
Position: 1 2 3 4
Row 1 (↓): C B D A
Row 2 (↑): P S Q R
Row 3 (↓): Y X W Z

Right extreme of Row 3 = position 4 = Z

Answer: Z

Question 3

Eight persons N, P, T, M, O, Q, S and R are sitting around a circular table. Some face the center and some face outward. N faces the center. P faces outward and sits third to the right of N. T sits second to the left of N and faces the same direction as P. M faces the center and sits immediately to the right of T. Q sits immediately to the right of N. R sits opposite N. S is not adjacent to P. Who sits second to the right of M?
Solution Approach:

Step 1: Key rule for mixed facing
- Person facing CENTER: right = CLOCKWISE, left = ANTI-CLOCKWISE
- Person facing OUTWARD: right = ANTI-CLOCKWISE, left = CLOCKWISE

Step 2: Draw 8-seat circle (positions 1–8 clockwise)

Step 3: Start with definite information
- Fix N (faces center) at position 1 (reference point)
- P faces outward, sits third to the RIGHT of N:
N faces center β†’ right = clockwise
3 CW from pos 1 β†’ pos 4
N = pos 4 βœ“

Step 4: Apply relative positions
- T sits second to the LEFT of N (pos 1):
N faces center β†’ left = anti-clockwise
2 anti-CW from pos 1 β†’ pos 7
T faces same as P β†’ OUTWARD
- M faces center, sits immediately to the RIGHT of T (pos 7):
T faces outward β†’ right = anti-clockwise
1 anti-CW from pos 7 β†’ pos 6

Step 5: Fill remaining persons
- Q immediately to the RIGHT of N(pos 1, center→CW): pos 2
- R opposite N(pos 1): pos 5
- S not adjacent to P(pos 4): adj = pos 3 & 5
β†’ S at pos 8, O at pos 3

Final Arrangement (clockwise):
pos1:N(ctr) | pos2:Q(out) | pos3:O(ctr) | pos4:P(out) | pos5:R(out) | pos6:M(ctr) | pos7:T(out) | pos8:S(ctr)

Find second to the right of M (pos 6, center-facing β†’ CW):
2 CW from pos 6: β†’ pos 8 = S

Verification:
βœ“ P(outward) 3 left of N(center): 3 ACW from pos1 = pos4
βœ“ T 2nd left of N, same direction as P (outward)
βœ“ M(center) immediately right of T(outward, right=ACW)
βœ“ Q immediately right (CW) of N
βœ“ R opposite N
βœ“ S not adjacent to P

Answer: S sits second to the right of M.

Question 4

Six persons K, L, M, N, P and O sit around a circular table facing outward. L sits second to the left of K. M sits opposite to L. N sits immediately to the right of M. P sits opposite to K. Who sits immediately to the left of L?
Solution Approach:

Step 1: Understanding facing outward
When facing outward (away from center):
- LEFT = CLOCKWISE direction
- RIGHT = ANTI-CLOCKWISE direction
- Opposite positions are still n/2 = 3 seats apart.

Step 2: Draw diagram (positions 1–6 clockwise)

Step 3: Apply conditions
- Fix K at position 1.
- L sits second to the LEFT of K: left(outward)=CW, so L is 2 CW from K.
pos[L] = 3
- M sits opposite L (pos 3): pos 6
- N sits immediately to the RIGHT of M (pos 6):
right(outward)=anti-CW β†’ pos 5
- P sits opposite K (pos 1): pos 4
- Remaining O fills pos 2.

Final Arrangement (clockwise):
pos1:K β†’ pos2:O β†’ pos3:L β†’ pos4:P β†’ pos5:N β†’ pos6:M
(All facing outward β†—)

Find immediate left of L (pos 3):
Left (outward) = clockwise β†’ pos 4 = P

Verification:
βœ“ L second to left of K (CW direction)
βœ“ M opposite L
βœ“ N immediately right (anti-CW) of M
βœ“ P opposite K

Answer: P sits immediately to the left of L.

Question 5

Five friends S, P, R, T and Q are sitting in a row facing South. S sits at the right extreme end. P sits second to the right of R. Q sits immediately to the right of R (from viewer's perspective). T is not adjacent to S. Who sits at the left extreme end?
Solution Approach:

Step 1: Understanding facing South
When persons face South:
- Their right hand points West (viewer's LEFT) β€” "right" in the question = lower position number
- Viewer's "right" (higher position) = person's left side

Step 2: Set up diagram (viewer's perspective)
Position: 1(left) 2 3 4 5(right)

Step 3: Apply conditions
- S at the right extreme end β†’ Position 5
- P sits second to the right of R:
South-facing right = viewer's left = lower position: pos[P] = pos[R] - 2
Possible: R=3β†’P=1, or R=4β†’P=2
- Q sits immediately to the right of R (viewer's right = higher pos): pos[Q] = pos[R] + 1
If R=3 β†’ Q=4 βœ“ (pos 4 free)
If R=4 β†’ Q=5 = S βœ— (conflict)
∴ R=3, P=1, Q=4

Position: P _ R Q S

Step 4: Apply constraint
- T not adjacent to S (pos 5): T β‰  pos 4 (taken by Q) β†’ T at pos 2 βœ“

Final Arrangement (all facing South ↓):
Position: P T R Q S

Verification:
βœ“ S at right extreme end (pos 5)
βœ“ P second to right of R: pos[P](=1)-2 = 3 = pos[R] (south-facing right=lower)
βœ“ Q immediately right of R (viewer right): pos 3+1 = 4
βœ“ T not adjacent to S (pos 2, not pos 4)

Answer: P sits at the left extreme end (position 1).

Question 6

Three parallel rows of chairs. Row 1 has D, C, B, A facing South. Row 2 has Q, R, P, S facing North. Row 3 has Y, X, W, Z facing South. Row 2 is between Row 1 and Row 3. Persons in Row 1 face persons in Row 2, and persons in Row 2 face persons in Row 3. D faces Q who faces Y. C sits to the left of D in Row 1. R faces C and also faces X. P sits second to the right of R in Row 2. Who sits at the right extreme of Row 3?
Solution Approach:

Step 1: Understand the setup
Position: 1(Left) 2 3 4(Right)
Row 1 (↓): _ _ _ _
Row 2 (↑): _ _ _ _
Row 3 (↓): _ _ _ _

Facing: Row 1 pos i faces Row 2 pos i; Row 2 pos i faces Row 3 pos i.
(Using viewer's perspective: left=position 1, right=position 4)

Step 2: Apply facing relationships
- D faces Q who faces Y: all three in the SAME vertical column.
Place at position 2:
Row1: _ D _ _
Row2: _ Q _ _
Row3: _ Y _ _

Step 3: Apply left-right conditions
- C sits to the left of D(pos 2) in Row 1 β†’ C at position 1
Row1: C D _ _

Step 4: Second facing relationship
- R faces C(Row1 pos1) β†’ R at Row2 position 1
- R faces X β†’ X at Row3 position 1
Row1: C D _ _
Row2: R Q _ _
Row3: X Y _ _

Step 5: Apply relative positioning in Row 2
- P sits second to the right of R(pos1): 1+2=3 β†’ P at Row2 position 3
Row2: R Q P _
P faces Row1 pos3 β†’ B at Row1 pos3 βœ“
P faces Row3 pos3 β†’ W at Row3 pos3 βœ“

Step 6: Fill remaining positions
Remaining: Row1 pos4=A, Row2 pos4=S, Row3 pos4=Z

Final Arrangement:
Position: 1 2 3 4
Row 1 (↓): C D B A
Row 2 (↑): R Q P S
Row 3 (↓): X Y W Z

Right extreme of Row 3 = position 4 = Z

Answer: Z

Question 7

There are 10 seats in a row, all facing North. 8 persons F, B, E, D, A, C, H and G are seated, leaving 2 seats empty. F sits at seat 3. G sits at seat 8. One empty seat is at an extreme end. B sits immediately to the right of an empty seat. D sits fourth to the left of G. How many persons sit between the two empty seats?
Solution Approach:

Step 1: Mark total positions
Seats: 1 2 3 4 5 6 7 8 9 10
Total: 10 seats, 8 persons, 2 empty.

Step 2: Place definite positions
- F at seat 3
- G at seat 8 (seat 8)
- One empty seat at extreme end β†’ seat 1 is empty

Seat: 1(_) 2(_) 3(F) 4(_) 5(_) 6(_) 7(_) 8(G) 9(_) 10(_)

Step 3: Apply empty seat adjacency
- B sits immediately to the RIGHT of an empty seat
- Empty at seat 1 β†’ seat 2 = B βœ“

Seat: 1(_) 2(B) 3(F) 4(_) 5(_) 6(_) 7(_) 8(G) 9(_) 10(_)

Step 4: Apply "fourth to the left" condition
- D sits fourth to the LEFT of G (seat 8)
- Fourth to left: 8 β†’ 7 β†’ 6 β†’ 5 β†’ 4
- D at seat 4 βœ“

Seat: 1(_) 2(B) 3(F) 4(D) 5(_) 6(_) 7(_) 8(G) 9(_) 10(_)

Step 5: Locate second empty seat
Remaining persons: A, C, H, E β†’ fill seats 5, 6, 7, 9, 10 minus one empty.
After placing A(5), C(6), H(7), E(10): seat 9 is empty.

Step 6: Final arrangement
Seat: 1(_) 2(B) 3(F) 4(D) 5(A) 6(C) 7(H) 8(G) 9(_) 10(E)

Count persons between empty seats (seat 1 and seat 9):
Seats 2 through 8: B, F, D, A, C, H, G = 7 persons

Verification:
βœ“ F at seat 3
βœ“ G at seat 8
βœ“ Empty at seat 1 (extreme end)
βœ“ B immediately right of empty seat 1
βœ“ D fourth to left of G (seat 4 = seat 8 - 4)

Answer: 7 persons sit between the two empty seats.

Question 8

Two parallel rows of chairs. Row 1 has B, C, E, A and D facing South. Row 2 has Q, T, S, R and P facing North. Each person in one row faces exactly one person from the other row. E sits fourth from the left end of Row 1. Q faces E. B sits at an extreme end of Row 1. C sits second to the right of B. T sits second to the left of Q. S sits at an extreme end of Row 2. P is not adjacent to Q in Row 2. Who faces C?
Solution Approach:

Step 1: Draw the double row setup
Row 1 faces South (↓), Row 2 faces North (↑)
Person at position i in Row 1 faces person at position i in Row 2.

Position: 1 2 3 4 5
Row 1 (↓): _ _ _ _ _
Row 2 (↑): _ _ _ _ _

Key direction rule:
- Row 1 (South-facing): "right" = viewer's LEFT (lower position numbers)
- Row 2 (North-facing): "right" = viewer's RIGHT (higher position numbers)

Step 2: Place Row 1 persons
- E sits 4th from the left end of Row 1 β†’ Row 1, pos 4
- B sits at an extreme end: pos 1 or pos 5
- C sits second to the RIGHT of B (south-facing β†’ lower position):
pos[C] = pos[B] - 2
If B at pos 1 β†’ pos[C] = -1 (invalid βœ—)
If B at pos 5 β†’ pos[C] = 3 βœ“ (pos 3 is free)
∴ B at pos 5, C at pos 3 βœ“

Row 1: _ _ C E B
Remaining A,D at pos 1 and 2 (either order β€” pinned next).

Step 3: Place Row 2 persons
- Q faces E (pos 4) β†’ Q at Row 2, pos 4
- T sits second to the LEFT of Q (north-facing β†’ lower position):
pos[T] = pos[Q] - 2 = 2 β†’ T at Row 2 pos 2 βœ“
- S sits at extreme end of Row 2: pos 1 or pos 5
- P is NOT adjacent to Q (pos 4): adjacent = pos 3 and pos 5
So P β‰  pos 3 and P β‰  pos 5
Remaining positions for S,R,P: pos 1, pos 3, pos 5
P not at pos 3 or pos 5 β†’ P at pos 1
S at extreme β†’ pos 5 (since pos 1 is P) βœ“
R fills pos 3 βœ“

Row 2: P T R Q S

Final Arrangement:
Position: 1 2 3 4 5
Row 1 (↓): A/D A/D C E B
Row 2 (↑): P T R Q S

Find who faces C:
C is at Row 1, position 3.
Person at Row 2, position 3 = R

Answer: R faces C.

Question 9

Five persons A, D, C, E and B are sitting in a row facing North. A sits at one of the extreme ends. D sits second to the right of A. C sits immediately to the left of D. E is not at any extreme end. Who sits at the other extreme end?
Solution Approach:

Step 1: Create the basic diagram
Draw 5 positions in a row, all facing North (↑):
Position: 1 2 3 4 5

Step 2: Apply direct conditions
- A sits at one extreme end β†’ Place A at position 1
- D sits second to the right of A β†’ D at position 3
- C sits immediately to the left of D β†’ C at position 2

Position: A C D _ _

Step 3: Apply constraint conditions
- E is not at any extreme end β†’ remaining positions are 4 and 5; E cannot be at 5, so E at position 4
- Only B remains β†’ B at position 5

Final Arrangement (all facing North ↑):
Position: A C D E B

Verification:
βœ“ A at extreme end (pos 1)
βœ“ D second to the right of A (pos 3)
βœ“ C immediately to the left of D (pos 2)
βœ“ E not at extreme end (pos 4)

Answer: B sits at the other extreme end (position 5).

Question 10

Six persons S, T, R, Q, P 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. R sits at the left extreme end facing South. Q sits immediately to the left of T facing North. U sits at the right extreme end. Who sits between R 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 (↑) β†’ Position 3
- R sits at the left extreme end facing South (↓) β†’ Position 1

Position: R(↓) _ S(↑) _ _ _

Step 3: Apply relative positioning
- T sits second to the right of S (pos 3) β†’ Position 5
- T faces opposite direction to S (North) β†’ T faces South (↓)
- Q sits immediately to the left of T (pos 5) facing North (↑) β†’ Position 4

Position: R(↓) _ S(↑) Q(↑) T(↓) _

Step 4: Fill remaining positions
Remaining persons: P, U
Position 2 gets P, Position 6 gets U

Final Arrangement:
Pos: R(↓) P(↑) S(↑) Q(↑) T(↓) U(↑)

Verification:
βœ“ S at pos 3, facing North
βœ“ T at pos 5 (second right of S), facing South (opposite of S)
βœ“ R at pos 1 (left extreme), facing South
βœ“ Q at pos 4 (immediately left of T), facing North

Person between R (pos 1) and S (pos 3): pos 2 = P

Answer: P sits between R and S.

Question 11

Six persons P, T, S, Q, R and U are sitting in a row. Some are facing North and some are facing South. P sits third from the left end facing North. T sits second to the right of P and faces opposite direction. S sits at the left extreme end facing South. Q sits immediately to the left of T facing North. U sits at the right extreme end. Who sits between S and P?
Solution Approach:

Step 1: Mark directions
↑ = North facing, ↓ = South facing

Step 2: Apply position-based conditions
- P sits third from the left end facing North (↑) β†’ Position 3
- S sits at the left extreme end facing South (↓) β†’ Position 1

Position: S(↓) _ P(↑) _ _ _

Step 3: Apply relative positioning
- T sits second to the right of P (pos 3) β†’ Position 5
- T faces opposite direction to P (North) β†’ T faces South (↓)
- Q sits immediately to the left of T (pos 5) facing North (↑) β†’ Position 4

Position: S(↓) _ P(↑) Q(↑) T(↓) _

Step 4: Fill remaining positions
Remaining persons: R, U
Position 2 gets R, Position 6 gets U

Final Arrangement:
Pos: S(↓) R(↑) P(↑) Q(↑) T(↓) U(↑)

Verification:
βœ“ P at pos 3, facing North
βœ“ T at pos 5 (second right of P), facing South (opposite of P)
βœ“ S at pos 1 (left extreme), facing South
βœ“ Q at pos 4 (immediately left of T), facing North

Person between S (pos 1) and P (pos 3): pos 2 = R

Answer: R sits between S and P.

Question 12

Two parallel rows of chairs. Row 1 has E, A, D, C and B facing South. Row 2 has T, S, R, Q and P facing North. Each person in one row faces exactly one person from the other row. D sits fourth from the left end of Row 1. T faces D. E sits at an extreme end of Row 1. A sits second to the right of E. S sits second to the left of T. R sits at an extreme end of Row 2. P is not adjacent to T in Row 2. Who faces A?
Solution Approach:

Step 1: Draw the double row setup
Row 1 faces South (↓), Row 2 faces North (↑)
Person at position i in Row 1 faces person at position i in Row 2.

Position: 1 2 3 4 5
Row 1 (↓): _ _ _ _ _
Row 2 (↑): _ _ _ _ _

Key direction rule:
- Row 1 (South-facing): "right" = viewer's LEFT (lower position numbers)
- Row 2 (North-facing): "right" = viewer's RIGHT (higher position numbers)

Step 2: Place Row 1 persons
- D sits 4th from the left end of Row 1 β†’ Row 1, pos 4
- E sits at an extreme end: pos 1 or pos 5
- A sits second to the RIGHT of E (south-facing β†’ lower position):
pos[A] = pos[E] - 2
If E at pos 1 β†’ pos[A] = -1 (invalid βœ—)
If E at pos 5 β†’ pos[A] = 3 βœ“ (pos 3 is free)
∴ E at pos 5, A at pos 3 βœ“

Row 1: _ _ A D E
Remaining C,B at pos 1 and 2 (either order β€” pinned next).

Step 3: Place Row 2 persons
- T faces D (pos 4) β†’ T at Row 2, pos 4
- S sits second to the LEFT of T (north-facing β†’ lower position):
pos[S] = pos[T] - 2 = 2 β†’ S at Row 2 pos 2 βœ“
- R sits at extreme end of Row 2: pos 1 or pos 5
- P is NOT adjacent to T (pos 4): adjacent = pos 3 and pos 5
So P β‰  pos 3 and P β‰  pos 5
Remaining positions for R,Q,P: pos 1, pos 3, pos 5
P not at pos 3 or pos 5 β†’ P at pos 1
R at extreme β†’ pos 5 (since pos 1 is P) βœ“
Q fills pos 3 βœ“

Row 2: P S Q T R

Final Arrangement:
Position: 1 2 3 4 5
Row 1 (↓): C/B C/B A D E
Row 2 (↑): P S Q T R

Find who faces A:
A is at Row 1, position 3.
Person at Row 2, position 3 = Q

Answer: Q faces A.

Question 13

Three parallel rows of chairs. Row 1 has A, B, C, D facing South. Row 2 has R, Q, P, S facing North. Row 3 has X, Y, Z, W facing South. Row 2 is between Row 1 and Row 3. Persons in Row 1 face persons in Row 2, and persons in Row 2 face persons in Row 3. A faces R who faces X. B sits to the left of A in Row 1. Q faces B and also faces Y. P sits second to the right of Q in Row 2. Who sits at the right extreme of Row 3?
Solution Approach:

Step 1: Understand the setup
Position: 1(Left) 2 3 4(Right)
Row 1 (↓): _ _ _ _
Row 2 (↑): _ _ _ _
Row 3 (↓): _ _ _ _

Facing: Row 1 pos i faces Row 2 pos i; Row 2 pos i faces Row 3 pos i.
(Using viewer's perspective: left=position 1, right=position 4)

Step 2: Apply facing relationships
- A faces R who faces X: all three in the SAME vertical column.
Place at position 2:
Row1: _ A _ _
Row2: _ R _ _
Row3: _ X _ _

Step 3: Apply left-right conditions
- B sits to the left of A(pos 2) in Row 1 β†’ B at position 1
Row1: B A _ _

Step 4: Second facing relationship
- Q faces B(Row1 pos1) β†’ Q at Row2 position 1
- Q faces Y β†’ Y at Row3 position 1
Row1: B A _ _
Row2: Q R _ _
Row3: Y X _ _

Step 5: Apply relative positioning in Row 2
- P sits second to the right of Q(pos1): 1+2=3 β†’ P at Row2 position 3
Row2: Q R P _
P faces Row1 pos3 β†’ C at Row1 pos3 βœ“
P faces Row3 pos3 β†’ Z at Row3 pos3 βœ“

Step 6: Fill remaining positions
Remaining: Row1 pos4=D, Row2 pos4=S, Row3 pos4=W

Final Arrangement:
Position: 1 2 3 4
Row 1 (↓): B A C D
Row 2 (↑): Q R P S
Row 3 (↓): Y X Z W

Right extreme of Row 3 = position 4 = W

Answer: W

Question 14

Two parallel rows of chairs. Row 1 has B, E, C, A and D facing South. Row 2 has S, R, Q, T and P facing North. Each person in one row faces exactly one person from the other row. C sits fourth from the left end of Row 1. S faces C. B sits at an extreme end of Row 1. E sits second to the right of B. R sits second to the left of S. Q sits at an extreme end of Row 2. P is not adjacent to S in Row 2. Who faces E?
Solution Approach:

Step 1: Draw the double row setup
Row 1 faces South (↓), Row 2 faces North (↑)
Person at position i in Row 1 faces person at position i in Row 2.

Position: 1 2 3 4 5
Row 1 (↓): _ _ _ _ _
Row 2 (↑): _ _ _ _ _

Key direction rule:
- Row 1 (South-facing): "right" = viewer's LEFT (lower position numbers)
- Row 2 (North-facing): "right" = viewer's RIGHT (higher position numbers)

Step 2: Place Row 1 persons
- C sits 4th from the left end of Row 1 β†’ Row 1, pos 4
- B sits at an extreme end: pos 1 or pos 5
- E sits second to the RIGHT of B (south-facing β†’ lower position):
pos[E] = pos[B] - 2
If B at pos 1 β†’ pos[E] = -1 (invalid βœ—)
If B at pos 5 β†’ pos[E] = 3 βœ“ (pos 3 is free)
∴ B at pos 5, E at pos 3 βœ“

Row 1: _ _ E C B
Remaining A,D at pos 1 and 2 (either order β€” pinned next).

Step 3: Place Row 2 persons
- S faces C (pos 4) β†’ S at Row 2, pos 4
- R sits second to the LEFT of S (north-facing β†’ lower position):
pos[R] = pos[S] - 2 = 2 β†’ R at Row 2 pos 2 βœ“
- Q sits at extreme end of Row 2: pos 1 or pos 5
- P is NOT adjacent to S (pos 4): adjacent = pos 3 and pos 5
So P β‰  pos 3 and P β‰  pos 5
Remaining positions for Q,T,P: pos 1, pos 3, pos 5
P not at pos 3 or pos 5 β†’ P at pos 1
Q at extreme β†’ pos 5 (since pos 1 is P) βœ“
T fills pos 3 βœ“

Row 2: P R T S Q

Final Arrangement:
Position: 1 2 3 4 5
Row 1 (↓): A/D A/D E C B
Row 2 (↑): P R T S Q

Find who faces E:
E is at Row 1, position 3.
Person at Row 2, position 3 = T

Answer: T faces E.

Question 15

Six persons Falguni, Eshaan, Chetan, Divya, Bina and Amit are sitting in a row facing North. Each has a different profession: Architect, Lawyer, Doctor, Teacher, Engineer and Banker. Falguni is a Architect and sits third from the left. The Lawyer sits second from the left. Eshaan sits second to the right of the Lawyer. The Engineer sits immediately to the right of Falguni. Bina is a Doctor and is not adjacent to Falguni. The Teacher sits at the right extreme end. Amit sits at an extreme end. Divya is not at an extreme end. What is the profession of Divya?
Solution Approach:

Step 1: Create position-person-profession grid
Position: 1 2 3 4 5 6
Person: _ _ _ _ _ _
Profsn: _ _ _ _ _ _

Step 2: Apply direct conditions
- Falguni is Architect, sits at position 3
- The Lawyer sits second from the left β†’ position 2
(Which person is the Lawyer? Must be Chetan, the only one unassigned here β€” verified below.)
- Eshaan sits second to the right of the Lawyer (pos 2): 2+2 = pos 4 β†’ Eshaan at position 4

Position: _ [Lawyer] Falguni Eshaan _ _
Profsn: _ Lawyer Architect _ _ _

Step 3: Apply adjacency and profession constraints
- The Engineer sits immediately to the RIGHT of Falguni(pos 3) β†’ pos 4 = Eshaan
∴ Eshaan is the Engineer βœ“
- The Teacher sits at right extreme β†’ position 6

Position: _ [Lawyer] Falguni Eshaan _ [law]
Profsn: _ Lawyer Architect Engineer _ Teacher

Step 4: Identify the Engineer
Persons left for pos1,2,5,6: Chetan, Divya, Bina, Amit
The Lawyer is at pos2. Which person?
Not Falguni(pos3), not Eshaan(pos4). Try each remaining:
Chetan at pos2 β†’ Chetan=Lawyer βœ“ (no other constraint violated)

Position: _ Chetan Falguni Eshaan _ _
Profsn: _ Lawyer Architect Engineer _ _

Step 5: Place E, D, F
Remaining persons: Bina,Divya,Amit β†’ positions 1, 5, 6.
- Bina is Doctor and NOT adjacent to Falguni(pos3): adjacent = pos2,pos4.
Bina not at pos2(taken) or pos4(taken). Remaining: pos1, pos5, pos6. All satisfy adjacency βœ“.
- Amit sits at an extreme end: pos1 or pos6.
- Divya is NOT at an extreme end: Divya not at pos1 or pos6 β†’ Divya at pos5.
- Amit at extreme: pos1 or pos6.
- Teacher at pos6. If F=Teacher, F at pos6. Otherwise F at pos1.
After placing D=pos5: remaining Bina and Amit at pos1 and pos6.
F at extreme β†’ F at pos1 or pos6 (both extreme).
Who is the Teacher (pos6)? Not Falguni(doc), Eshaan(ban), Chetan(eng), Divya(remaining profsn), Bina(tea).
Teacher must be Amit. So Amit at pos6 = Teacher. Bina at pos1 = Doctor βœ“ (not adjacent to Falguni).

Final Arrangement:
Position: 1 2 3 4 5 6
Person: Bina Chetan Falguni Eshaan Divya Amit
Profsn: Doctor Lawyer Architect Engineer ? Teacher

Step 6: Determine Divya's profession
Professions assigned: Architect(Falguni), Engineer(Eshaan), Lawyer(Chetan), Doctor(Bina), Teacher(Amit)
Remaining profession: Banker β†’ Divya is the Banker

Verification:
βœ“ Falguni=Doctor at pos 3
βœ“ Engineer(Chetan) at pos 2
βœ“ Eshaan second right of Engineer (pos 4)
βœ“ Banker(Eshaan) immediately right of Falguni
βœ“ Bina=Teacher at pos 1 (not adjacent to Falguni)
βœ“ Lawyer(Amit) at right extreme (pos 6)
βœ“ Amit at extreme end (pos 6)
βœ“ Divya not at extreme end (pos 5)

Answer: Divya's profession is Banker.

Question 16

Five persons Z, Y, X, W and V are to be seated in a row facing North. The following conditions apply: - If Z sits at an extreme end, then X must sit immediately next to Y - If Z does not sit at an extreme end, then W must sit at an extreme end - V cannot sit next to Z - Y sits second from the left Which of the following must be FALSE?
Solution Approach:

Step 1: Apply the fixed condition
- Y sits second from the left β†’ Y at position 2 (fixed)

Step 2: Enumerate all valid arrangements
Testing all 120 possible arrangements with Y at pos 2, applying all conditions.
7 valid arrangement(s) found.

Valid arrangement(s):
β€’ Z Y X W V
β€’ Z Y X V W
β€’ X Y V W Z
β€’ W Y Z X V
β€’ V Y Z X W
β€’ V Y X Z W
(shown up to 6)

Step 3: Test each MCQ option

- "V sits at position 1": βœ“ Possible in at least one valid arrangement
- "W sits at position 4": βœ“ Possible in at least one valid arrangement
- "Z sits at position 1": βœ“ Possible in at least one valid arrangement
- "Z sits at position 2": βœ— NEVER possible β†’ must be FALSE

Step 4: Conclusion
"Z sits at position 2" is impossible in ALL 7 valid arrangement(s) β€” it must be FALSE.
All other options occur in at least one valid arrangement.

Answer: "Z sits at position 2" must be FALSE.

Question 17

Eight persons P, Q, S, R, N, T, O and M are sitting around a circular table. Some face the center and some face outward. P faces the center. Q faces outward and sits third to the right of P. S sits second to the left of P and faces the same direction as Q. R faces the center and sits immediately to the right of S. T sits immediately to the right of P. M sits opposite P. O is not adjacent to Q. Who sits second to the right of R?
Solution Approach:

Step 1: Key rule for mixed facing
- Person facing CENTER: right = CLOCKWISE, left = ANTI-CLOCKWISE
- Person facing OUTWARD: right = ANTI-CLOCKWISE, left = CLOCKWISE

Step 2: Draw 8-seat circle (positions 1–8 clockwise)

Step 3: Start with definite information
- Fix P (faces center) at position 1 (reference point)
- Q faces outward, sits third to the RIGHT of P:
P faces center β†’ right = clockwise
3 CW from pos 1 β†’ pos 4
N = pos 4 βœ“

Step 4: Apply relative positions
- S sits second to the LEFT of P (pos 1):
P faces center β†’ left = anti-clockwise
2 anti-CW from pos 1 β†’ pos 7
S faces same as Q β†’ OUTWARD
- R faces center, sits immediately to the RIGHT of S (pos 7):
S faces outward β†’ right = anti-clockwise
1 anti-CW from pos 7 β†’ pos 6

Step 5: Fill remaining persons
- T immediately to the RIGHT of P(pos 1, center→CW): pos 2
- M opposite P(pos 1): pos 5
- O not adjacent to Q(pos 4): adj = pos 3 & 5
β†’ O at pos 8, N at pos 3

Final Arrangement (clockwise):
pos1:P(ctr) | pos2:T(out) | pos3:N(ctr) | pos4:Q(out) | pos5:M(out) | pos6:R(ctr) | pos7:S(out) | pos8:O(ctr)

Find second to the right of R (pos 6, center-facing β†’ CW):
2 CW from pos 6: β†’ pos 8 = O

Verification:
βœ“ Q(outward) 3 left of P(center): 3 ACW from pos1 = pos4
βœ“ S 2nd left of P, same direction as Q (outward)
βœ“ R(center) immediately right of S(outward, right=ACW)
βœ“ T immediately right (CW) of P
βœ“ M opposite P
βœ“ O not adjacent to Q

Answer: O sits second to the right of R.

Question 18

Six persons D, C, E, B, F and A are sitting around a circular table facing the center. D sits second to the left of C. E sits opposite to D. B sits immediately to the right of E. A is not adjacent to B. Who sits opposite to C?
Solution Approach:

Step 1: Draw circular diagram
6 persons facing center. Opposite positions are 3 seats apart.
Number positions 1–6 clockwise.

Step 2: Place definite positions
- Fix D at position 1 (reference point)
- D is second to the LEFT of C β†’ C is 2 clockwise from D
pos[C] = 3
- E sits OPPOSITE D (pos 1) β†’ pos 4
- B sits immediately to the right of E (pos 4) β†’ pos 5

Step 3: Resolve remaining positions
Remaining persons: A, F β†’ remaining seats: [2, 6]
A is NOT adjacent to B (pos 5).
Adjacent to pos 5: pos 4 and pos 6.
Therefore A β†’ pos 2, and F β†’ pos 6.

Final Arrangement (clockwise):
pos1:D β†’ pos2:A β†’ pos3:C β†’ pos4:E β†’ pos5:B β†’ pos6:F
(All facing center)

Opposite pairs: pos1↔pos4, pos2↔pos5, pos3↔pos6

C is at pos 3 β†’ opposite = pos 6 = F

Answer: F sits opposite to C.

Question 19

Eight persons B, D, A, F, E, C, H and G are sitting around a square table. Four persons sit at corners and four at the middle of sides, all facing the center. B sits at a corner. D sits second to the right of B. A sits at the middle of a side and is not adjacent to B. F sits opposite to B. E sits at a corner immediately to the right of A. C sits immediately to the left of D. H is not adjacent to F. How many persons sit between B and F when counted from the left of B?
Solution Approach:

Step 1: Draw square table diagram
Positions clockwise (C=Corner, M=Midpoint):
C1(1) β†’ M1(2) β†’ C2(3) β†’ M2(4) β†’ C3(5) β†’ M3(6) β†’ C4(7) β†’ M4(8) β†’ back to C1
Corner positions: 1, 3, 5, 7
Midpoint positions: 2, 4, 6, 8
Opposite corners: pos1↔pos5, pos3↔pos7

Step 2: Place persons systematically
- B sits at a corner β†’ pos 1
- D sits second to the RIGHT of B: right(center-facing)=CW
2 CW from pos 1 β†’ pos 3 βœ“ (corner)
- F sits OPPOSITE B (pos 1) β†’ pos 5 βœ“
- A at midpoint, NOT adjacent to B(pos 1):
Adjacent to pos 1: pos 8 and pos 2
A β†’ pos 6 (midpoint, not adjacent) βœ“
- E sits at corner immediately to the RIGHT of A(pos 6):
1 CW from pos 6 β†’ pos 7 (corner) βœ“

Step 3: Remaining persons
Remaining: C, H, G
Fill remaining seats: pos2=C, pos8=H, pos4=G

Final Arrangement (clockwise):
pos1:B β†’ pos2:C β†’ pos3:D β†’ pos4:G β†’ pos5:F β†’ pos6:A β†’ pos7:E β†’ pos8:H

Step 4: Count from LEFT of B to F
Left = anti-clockwise direction from B(pos 1):
pos1(B) β†’ pos8(H) β†’ pos7(E) β†’ pos6(A) β†’ pos5(F)
Persons between (excluding B and F): pos8(H), pos7(E), pos6(A)
Count = 3 person(s)

Answer: Three person(s) sit between B and F.

Question 20

Six persons Amit, Chetan, Bina, Eshaan, Divya and Falguni are sitting in a row facing North. Each has a different profession: Banker, Lawyer, Architect, Engineer, Teacher and Doctor. Amit is a Banker and sits third from the left. The Lawyer sits second from the left. Chetan sits second to the right of the Lawyer. The Teacher sits immediately to the right of Amit. Divya is a Architect and is not adjacent to Amit. The Engineer sits at the right extreme end. Falguni sits at an extreme end. Eshaan is not at an extreme end. What is the profession of Eshaan?
Solution Approach:

Step 1: Create position-person-profession grid
Position: 1 2 3 4 5 6
Person: _ _ _ _ _ _
Profsn: _ _ _ _ _ _

Step 2: Apply direct conditions
- Amit is Banker, sits at position 3
- The Lawyer sits second from the left β†’ position 2
(Which person is the Lawyer? Must be Bina, the only one unassigned here β€” verified below.)
- Chetan sits second to the right of the Lawyer (pos 2): 2+2 = pos 4 β†’ Chetan at position 4

Position: _ [Lawyer] Amit Chetan _ _
Profsn: _ Lawyer Banker _ _ _

Step 3: Apply adjacency and profession constraints
- The Teacher sits immediately to the RIGHT of Amit(pos 3) β†’ pos 4 = Chetan
∴ Chetan is the Teacher βœ“
- The Engineer sits at right extreme β†’ position 6

Position: _ [Lawyer] Amit Chetan _ [law]
Profsn: _ Lawyer Banker Teacher _ Engineer

Step 4: Identify the Engineer
Persons left for pos1,2,5,6: Bina, Eshaan, Divya, Falguni
The Lawyer is at pos2. Which person?
Not Amit(pos3), not Chetan(pos4). Try each remaining:
Bina at pos2 β†’ Bina=Lawyer βœ“ (no other constraint violated)

Position: _ Bina Amit Chetan _ _
Profsn: _ Lawyer Banker Teacher _ _

Step 5: Place E, D, F
Remaining persons: Divya,Eshaan,Falguni β†’ positions 1, 5, 6.
- Divya is Architect and NOT adjacent to Amit(pos3): adjacent = pos2,pos4.
Divya not at pos2(taken) or pos4(taken). Remaining: pos1, pos5, pos6. All satisfy adjacency βœ“.
- Falguni sits at an extreme end: pos1 or pos6.
- Eshaan is NOT at an extreme end: Eshaan not at pos1 or pos6 β†’ Eshaan at pos5.
- Falguni at extreme: pos1 or pos6.
- Engineer at pos6. If F=Engineer, F at pos6. Otherwise F at pos1.
After placing D=pos5: remaining Divya and Falguni at pos1 and pos6.
F at extreme β†’ F at pos1 or pos6 (both extreme).
Who is the Engineer (pos6)? Not Amit(doc), Chetan(ban), Bina(eng), Eshaan(remaining profsn), Divya(tea).
Engineer must be Falguni. So Falguni at pos6 = Engineer. Divya at pos1 = Architect βœ“ (not adjacent to Amit).

Final Arrangement:
Position: 1 2 3 4 5 6
Person: Divya Bina Amit Chetan Eshaan Falguni
Profsn: Architect Lawyer Banker Teacher ? Engineer

Step 6: Determine Eshaan's profession
Professions assigned: Banker(Amit), Teacher(Chetan), Lawyer(Bina), Architect(Divya), Engineer(Falguni)
Remaining profession: Doctor β†’ Eshaan is the Doctor

Verification:
βœ“ Amit=Doctor at pos 3
βœ“ Engineer(Bina) at pos 2
βœ“ Chetan second right of Engineer (pos 4)
βœ“ Banker(Chetan) immediately right of Amit
βœ“ Divya=Teacher at pos 1 (not adjacent to Amit)
βœ“ Lawyer(Falguni) at right extreme (pos 6)
βœ“ Falguni at extreme end (pos 6)
βœ“ Eshaan not at extreme end (pos 5)

Answer: Eshaan's profession is Doctor.
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