Six friends, P, Q, R, S, T and U are sitting in a row, all facing towards South. S is not at the end. R is sitting between P and T. Q is sitting to the immediate right of T. U is not at the left end.

Which of the following must be true?

(A) P is sitting at the left end.
(B) U is sitting adjacent to T.
(C) R is sitting third to left of S.
(D) U and S are not neighbors.

Choose the correct answer from the options given below:

(A) and (C) only

The correct answer is Option (4) → (A) and (C) only

Let us arrange the friends step by step.

Given:

• Six friends: P, Q, R, S, T, U in a row
• All are facing south (often ignored in such questions unless relative direction is crucial)
• S is not at the end
• R is sitting between P and T (consecutively)
• Q is sitting immediately to the right of T
• U is not at the left end

Arrangement

From

• R between P and T → P – R – T
• Q immediately to the right of T → P – R – T – Q

Placing these in the row and fitting S and U with the given conditions, the only valid seating is:

P – R – T – Q – S – U

Checking the statements

(A) P is sitting at the left end True

(B) U is sitting adjacent to T False

(C) R is sitting third to the left of S True
(From S, counting three positions to the left reaches R)

(D) U and S are not neighbors False
(U and S are adjacent)

Correct Answer: (A) and (C) only