Verify mobile number to view the solution
Solutions
Final arrangement is here:

Clues: U sits fourth to the right of Q. Only one person sits between U and W.
Inference: From the above condition we have two possible cases here:

Clues: T is an immediate neighbor of W and sits to the right of W. Two persons sit between S and U.
Inference:

Clues: S is not an immediate neighbor of Q and P. V sits to left of P.
Inference: From the above condition case 2 gets eliminated here

Inference: Only R is left to be placed. Final arrangement is here:

Q and S sit at the extreme end of the row