Six boys labelled I, J, K, L, M and N are placed in a row facing towards north. Three boys are placed between I and J. J is placed second to the right of K. L is placed immediate right of J. M is placed to the second to the left of N. Which boy is placed to the Left of J?

N

Three boys are placed between I and J.

CASE 1:

I   _     _     _    J

CASE 2:

J   _     _     _    I

J is placed second to the right of K. L is placed immediate right of J.

CASE 1:

I   _     K     _    J     L

CASE 2:

K     _    J     L     _     _    I

It is not possible because  in this case the total boys becomes 7 which  is not true. So, the only case1 is the only possibility.

M is placed to the second to the left of N.

I    M     K     N    J     L

So, only N is to the left of J.