Explanation:

1) 3 persons are sitting between M and N. 2) K is third to the right of N. 3) K is second to the left of P.

Case-1    M_ _ _ N _ _ K _ P                                                       Case-2     N _ _ K M P

4) The number of people between M and P is the same as the number of people between M and L. (Here case – 2 will gets neglected as there is no space for L to sit.)

5) Only three people sit to the left of L.

6) Six people sit between L and J.

7) Two people sit between P and R.

8) R is sitting at the second position from one of the ends.

_ _ _ L _ _ _ _ _ _ J _ M _ _ _ N _ _ K _ P _ _ R _

The above arrangement will be the final arrangement.

Hence, there are a total of 26 persons in the row

Hence, J sits 2nd to the left of M.