Study the following information and answer the questions given below: Fourteen…
2021
Study the following information and answer the questions given below:
Fourteen persons viz. A, B, C, D, P, Q, R, S, K, L, M, N, Y and Z sit in two parallel rows (but not necessarily in the same order) in such a way that seven persons sit in each row. A, B, P, Q, K, L and Y sit in row 1 and face north while C, D, R, S, M, N and Z sit in row 2 and face south. The persons in row 1 sit exactly opposite to the persons sit in row 2. Y sits diagonally opposite to Z. One person sits between Z and R. P faces R and sits immediate right of A. The number of persons sit between Y and A is same as the number of persons sit to the right of M. B sits second to the right of the one who faces R. Three persons sit between B and Q. C sits diagonally opposite to Q. C and D are immediate neighbours. N faces K.
Who among the following sits fourth to the right of the one who faces Z?
- A.
Y
- B.
P
- C.
K
- D.
L
- E.
B
Show answer & explanation
Correct answer: E
Concept
In a two-parallel-row arrangement, each Row-1 person sits exactly opposite (faces) one Row-2 person. Direction is governed by facing: a north-facing person's right hand points one way along the row, while a south-facing person, looking the opposite way, has left and right reversed. "Diagonally opposite" means the two people occupy opposite end-corners of the two rows. The method is to lock the fixed-position and facing clues first, then add the relative clues until a single seating emerges.
Application — building the rows
P faces R, so P (Row-1) and R (Row-2) share the same column. P is immediate right of A, and B is second to the right of the one who faces R, i.e. of P. This fixes the run A, P, K, B along Row-1 with one seat between P and B.
Three persons sit between B and Q places Q at one far end of Row-1; C is diagonally opposite Q, so C takes the far corner of Row-2.
Y is diagonally opposite Z, fixing Y at the other end of Row-1 and Z at the opposite corner of Row-2. One person sits between Z and R, fixing R two seats from Z.
C and D are immediate neighbours and N faces K; the count clue, that persons between Y and A equals persons to the right of M, then fixes S and M, completing both rows.
The unique arrangement, reading each row from left to right, is:
Row | Seat 1 | Seat 2 | Seat 3 | Seat 4 | Seat 5 | Seat 6 | Seat 7 |
|---|---|---|---|---|---|---|---|
Row 1 (faces North) | Q | A | P | K | B | L | Y |
Row 2 (faces South) | Z | S | R | N | M | D | C |
Answering the question
Z sits at the end of Row-2 and faces the Row-1 person sharing its column, who is Q. Counting four seats to Q's right along Row-1 — Q to A is one, to P is two, to K is three, to the fifth seat is four — lands on B.
Cross-check
Re-mirroring the rows, treating right as the opposite direction, reproduces the very same seating reflected end-to-end, and the person four to the right of the one facing Z is still B, so the result does not depend on the drawing orientation.