Study the following information carefully and answer the questions given below.
Nine persons K, J, Y, R, D, L, X, P and S sit around a circular table but not necessarily in the same order. All of them are facing away from the centre of the table. K sits 3rd to the left of J. One person sits between K and X. Two persons sit between K and L. D sits immediately right of R and both of them are not adjacent to L. At least three persons sit between P and Y (both from left or right) . Y is not adjacent to S.
Who among the following sits to the immediate right of D?
Correct Answer :
J
Solution :
To determine who sits to the immediate right of D, let us analyze the given information step-by-step to determine the seating arrangement of the nine persons around the circular table facing away from the centre.
1. Understanding the Circular Table Setup:
- Total number of persons = 9.
- Direction faced = Facing away from the centre (Facing outwards).
- Note: When facing away from the centre, clockwise corresponds to Left and counter-clockwise corresponds to Right (or vice versa, but consistently: "Left" goes clockwise around the circle, "Right" goes counter-clockwise).
2. Deductive Step-by-Step Placement:
- Placement of J and K:
K sits 3rd to the left of J. Let us assign position numbers 1 through 9 in a clockwise direction.
Place J at Position 1. Moving 3 steps clockwise (to the left of J):
Position 2, Position 3, Position 4 → K is at Position 4.
- Placement of X:
One person sits between K (Position 4) and X. So, X can be at Position 2 or Position 6.
Let us analyze the possibilities for X and L.
- Placement of L:
Two persons sit between K (Position 4) and L.
So, L could be at Position 1 (going counter-clockwise/right) or Position 7 (going clockwise/left).
Since J is already at Position 1, L MUST be at Position 7.
- Placement of D and R:
D sits immediately right of R. Since everyone faces outwards, "immediately right of R" means D is placed adjacent to R in the counter-clockwise direction.
Both D and R are not adjacent to L (Position 7). Thus, D and R cannot occupy Positions 6, 7, or 8.
Available positions for the contiguous pair (R, D) such that D is to the immediate right of R are Positions 2 and 3, or Positions 3 and 4 (taken by K), or Positions 8 and 9.
Since Positions 6, 7, 8 are restricted for D and R, R cannot be at 8. Thus, R and D must occupy Positions 2 and 3 respectively (R at Position 2, D at Position 3).
Since R is at Position 2, X (which was either 2 or 6) must be at Position 6.
- Current Positions Summary:
Position 1: J
Position 2: R
Position 3: D
Position 4: K
Position 5: Empty (S / P / Y)
Position 6: X
Position 7: L
Position 8: Empty (S / P / Y)
Position 9: Empty (S / P / Y)
- Placing remaining persons P, Y, and S:
The remaining available positions are 5, 8, and 9.
Condition: "At least three persons sit between P and Y (both from left or right)".
In a 9-person circular arrangement, sitting with at least 3 persons between P and Y means P and Y must be separated by 3 or 4 positions along the circle.
Position 5 and Position 9 have 3 persons between them (Positions 6, 7, 8 on one side, and Positions 1, 2, 3, 4 on the other side = 4 persons).
So P and Y must occupy Positions 5 and 9.
This leaves Position 8 for S.
Condition: "Y is not adjacent to S".
S is at Position 8. Since Position 9 is adjacent to Position 8, Y cannot be at Position 9.
Therefore, Y is at Position 5, and P is at Position 9.
3. Final Seating Order (Clockwise / Facing Outwards):
Position 1: J
Position 2: R
Position 3: D
Position 4: K
Position 5: Y
Position 6: X
Position 7: L
Position 8: S
Position 9: P
4. Finding the Person to the Immediate Right of D:
D is at Position 3. Facing away from the centre, the immediate right of D corresponds to the counter-clockwise adjacent position, which is Position 1.
Position 1 is occupied by J.
Thus, J sits to the immediate right of D.
The correct answer is J.
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