The number of persons sits between L and O is the same

Solution

STEP I: P sits third to the left of M who sits an immediate neighbour of O. Three persons sit between J and O who sits second to the left of K. As per these statements, we can say that there are three possible cases and the arrangement will look like this: STEP II: L sits to the immediate left of N who sits second to the left of P. Both L and J sit adjacent to each other. The number of persons sits between N and O is one less than the number of persons sits between O and L when counted from the right of both N and O respectively. At least one person sits between K and L when counted from the right of K. As per these statements, CASE I and CASE III get eliminated and we continue with CASE II and the final arrangement will look like this: