Seven children K, L, P, R, T, X and Y are sitting on a straight bench facing…
2023
Seven children K, L, P, R, T, X and Y are sitting on a straight bench facing towards North. ‘X’ is sitting immediately left of ‘Y’. ‘T’ is the immediate neighbour of ‘R’ and ‘P’. Neither ‘X’ nor ‘Y’ are the immediate neighbours of ‘L’. ‘P’ is sitting second to the left of ‘L’. Question: Who is sitting at the second position from the right end?
- A.
T
- B.
K
- C.
P
- D.
R
Attempted by 109 students.
Show answer & explanation
Correct answer: B
Key clues:
X is immediately left of Y.
T is an immediate neighbour of both R and P (so T sits between R and P).
Neither X nor Y are immediate neighbours of L.
P is second to the left of L (there is exactly one person between P and L).
Placement steps:
Place P and L so that P is two seats to the left of L. The only arrangement that fits all clues places P and L at positions 5 and 7 (counting left to right).
T must be adjacent to P and R, so T is between R and P. This places R at position 3 and T at position 4 when P is at position 5.
X and Y must be adjacent (X immediately left of Y) and cannot be neighbours of L (so they cannot be at positions adjacent to L). This forces X and Y to occupy the leftmost two seats.
Final arrangement (left to right): X, Y, R, T, P, K, L
Answer: K is sitting at the second position from the right end.