Five children are sitting in a row. S is sitting next to P but not T. K is sitting next R who is sitting on the extreme left and T is not sitting next to K. Who are sitting adjacent to S ?

Answer: D. P and T
S is sitting next to P. So, the order S, P or P, S is followed. K is sitting next to R. So, the order R, K is followed because R is on the extreme left. T is not next to P or K. So, the arrangement will be R, K, P, S, T. Clearly, P and T are sitting adjacent to S.