Seven friends M, N, J, K, P, Q and R, are sitting in a circle facing at the…
2023
Seven friends M, N, J, K, P, Q and R, are sitting in a circle facing at the centre but not necessarily in the same order.
‘Q’ is to the immediate right of 'M’. ‘R is not between 'J' and ‘Q’. ‘P’ is neighbour of ‘M' and 'K’.
Which of the following persons are sitting adjacent to each other from left to right in the order as shown ?
- A.
PKR
- B.
NRJ
- C.
JKR
- D.
QNJ
Attempted by 87 students.
Show answer & explanation
Correct answer: D
Key facts: Q is immediately to the right of M; P is a neighbour of both M and K; R is not between J and Q.
Place M and put Q immediately to M’s right (when people face the centre, immediate right corresponds to the next seat clockwise).
P must be a neighbour of both M and K, so P sits between K and M. That fixes the local clockwise order as K, P, M, Q.
The remaining people N, J, R occupy the three remaining seats. The condition that R is not between J and Q prevents placing R in the seat between J and Q.
Arranging the three remaining people so that R is not between J and Q gives the clockwise seating K, P, M, Q, N, J, R. In this arrangement Q, N, J appear consecutively left-to-right.
Final seating (clockwise): K, P, M, Q, N, J, R
Answer: Q N J are sitting adjacent from left to right.