Five person are sitting in a row. S is sitting to immediate left of P. K is sitting next to M who is sitting on the extreme left and U is sitting on extreme right end. Who are sitting adjacent to S?

K and P

M    K     S     P     U 

K is sitting next to M who is sitting on the extreme left and U is sitting on extreme right end.

∴ The position for M, K and U is fixed.

S is sitting to immediate left of P.