FLOOR of the building is numbered ONE, the one above that is numbered TWO and so on until the topmost floor is numbered eight.J lives on floor numbered six.Only one person lives between J and L.Case - 1Case - 2O lives on the floor immediately below L.Case - 1Case - 2Only one person lives between O and P.O lives above P.Case - 1Case - 2K lives on an even-numbered floor but not on the floor numbered two.Case - 1Case - 2Two persons live between K and Q.Q does not live on the lowermost floor. By this STATEMENT, we can eliminate case 2 and we continue with case 1. Case - 1 N lives on one of the floors above Q. So the final arrangement is : Case - 1From the above arrangement we see, K lives on floor NUMBER eight.Hence, the correct answer is K.