How many persons live between the floors of Q and R ........

 

Nine persons J, K, L, M, N, O, P, Q and R live on different floors of a building having nine floors (Ground floor is numbered 1, the floor just above it is numbered 2 and so on till 9th floor). There are as many persons between O and Q as between O and L.There are four floors between floor of N and R. P does not live on even no. floor. Same number of persons live above and below J. Two persons live between N and J. Q live above L. Only one person lives between P and K. P lives above M and N.