Question 1
Eight persons T, O, M, Q, P, S, N and R are sitting around a circular table. Some face the center and some face outward.
T faces the center. O faces outward and sits third to the right of T.
M sits second to the left of T and faces the same direction as O.
Q faces the center and sits immediately to the right of M.
S sits immediately to the right of T. R sits opposite T.
N is not adjacent to O.
Who sits second to the right of Q?
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 1β8 clockwise)
Step 3: Start with definite information
- Fix T (faces center) at position 1 (reference point)
- O faces outward, sits third to the RIGHT of T:
T faces center β right = clockwise
3 CW from pos 1 β pos 4
N = pos 4 β
Step 4: Apply relative positions
- M sits second to the LEFT of T (pos 1):
T faces center β left = anti-clockwise
2 anti-CW from pos 1 β pos 7
M faces same as O β OUTWARD
- Q faces center, sits immediately to the RIGHT of M (pos 7):
M faces outward β right = anti-clockwise
1 anti-CW from pos 7 β pos 6
Step 5: Fill remaining persons
- S immediately to the RIGHT of T(pos 1, centerβCW): pos 2
- R opposite T(pos 1): pos 5
- N not adjacent to O(pos 4): adj = pos 3 & 5
β N at pos 8, P at pos 3
Final Arrangement (clockwise):
pos1:T(ctr) | pos2:S(out) | pos3:P(ctr) | pos4:O(out) | pos5:R(out) | pos6:Q(ctr) | pos7:M(out) | pos8:N(ctr)
Find second to the right of Q (pos 6, center-facing β CW):
2 CW from pos 6: β pos 8 = N
Verification:
β O(outward) 3 left of T(center): 3 ACW from pos1 = pos4
β M 2nd left of T, same direction as O (outward)
β Q(center) immediately right of M(outward, right=ACW)
β S immediately right (CW) of T
β R opposite T
β N not adjacent to O
Answer: N sits second to the right of Q.
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 1β8 clockwise)
Step 3: Start with definite information
- Fix T (faces center) at position 1 (reference point)
- O faces outward, sits third to the RIGHT of T:
T faces center β right = clockwise
3 CW from pos 1 β pos 4
N = pos 4 β
Step 4: Apply relative positions
- M sits second to the LEFT of T (pos 1):
T faces center β left = anti-clockwise
2 anti-CW from pos 1 β pos 7
M faces same as O β OUTWARD
- Q faces center, sits immediately to the RIGHT of M (pos 7):
M faces outward β right = anti-clockwise
1 anti-CW from pos 7 β pos 6
Step 5: Fill remaining persons
- S immediately to the RIGHT of T(pos 1, centerβCW): pos 2
- R opposite T(pos 1): pos 5
- N not adjacent to O(pos 4): adj = pos 3 & 5
β N at pos 8, P at pos 3
Final Arrangement (clockwise):
pos1:T(ctr) | pos2:S(out) | pos3:P(ctr) | pos4:O(out) | pos5:R(out) | pos6:Q(ctr) | pos7:M(out) | pos8:N(ctr)
Find second to the right of Q (pos 6, center-facing β CW):
2 CW from pos 6: β pos 8 = N
Verification:
β O(outward) 3 left of T(center): 3 ACW from pos1 = pos4
β M 2nd left of T, same direction as O (outward)
β Q(center) immediately right of M(outward, right=ACW)
β S immediately right (CW) of T
β R opposite T
β N not adjacent to O
Answer: N sits second to the right of Q.