Seven people, I, J, K, L, O, P and Q are sitting in a row, facing north. Only J sits to the left of Q. Only four people sit between J and I. Only O sits between P and K and P is not an immediate neighbour of I. Who sits at the extreme right end of the row?​

Seven people, I, J, K, L, O, P and Q are sitting in a row, facing north.

Only J sits to the left of Q.

Only four people sit between J and I.

Only O sits between P and K and P is not an immediate neighbour of I.

So L sits at the extreme right end of the row.

Thus, correct option is (c).