P, Q, R, S and T are five friends standing in a straight

Solution

P, Q, R, S and T are five friends standing in a straight line facing towards north. P is on the immediate right of Q. T is between P and S. If R and Q are at the ends, which of the following is second to the left of R? If R and Q are at the ends, Q and R can be either at right or left extreme ends. Q ___ ____   ____   R ............. (i) R ___ ____   ____   Q ............. (ii) P is on the immediate right of Q. T is between P and S. As all of them are facing north so case (ii) will not be valid. Q  P  T  S  R