Answer the questions based on the information given

Solution

At least two persons sit ahead of N. We get N is the 3rd or 4th or 5th or 6th person in the row. P sits just behind S. We get S sits just ahead of P. Only one person sits between Q and P. We get I sits behind P R sits behind Q but ahead of O. We get both R and O sit behind Q.   So, S is the first person in the row and O is the last person in the row. P, N, Q and R is the 2nd, 3rd, 4th and 5th person in the row, respectively. Therefore, the final arrangement is given below:   S (first) > P > N > Q > R > O (last)