P, Q, R, S, T and U are sitting on a bench. Q is at the right end. R is sitting to the immediate right of S. U is sitting to the immediate left of T, and T is sitting to the immediate left of Q. P is sitting to the immediate left of S. Who is sitting at the left end?

Option :
a) U
b) T
c) R
d) P

Solution:

Q is at the right end
_ _ _ _ _ Q
T is sitting immediate left of Q
_ _ _ _ T Q
U is sitting immediate left of T
_ _ _ U T Q
P is sitting immediate left of S
R is sitting immediate right of S
P S R U T Q
P is sitting at the left end.

Answer: d) P