Seven persons I, J, K, L, M, N and O are sitting around a circular table, but not necessarily in the same order. 
Some persons are facing inside while some persons are facing outside the centre of a table. 
J sits immediate to the left of M. 

K sits second to the right of J. 


Three persons sit between M and N, who sits second to the left of O.
Neither J nor M is neighbour of O. 
Thus, case 1a and case 2 are invalid. 

O sits fourth to the right of L. 

The total number of persons facing inside is one less than the total number of persons facing outside the centre of a table. 
Thus, three persons face inside while four persons face outside. 
P face in the same direction as N and K. Thus, case 2a is invalid. 
Therefore, the final arrangement is: 

P sits third to the left of J.