Question

Who is seated at the leftmost position?

• A. R
• B. S
• C. T
• D. Cannot determine
• A. P
• B. Q
• C. T
• D. R
• A. 2nd
• B. 3rd
• C. 4th
• D. 5th
• A. R
• B. S
• C. Q
• D. None

Answer 1

The Correct Option is C

Step 1: Set up the row. Five seats: .........

Step 2: Apply conditions. P is not at an end (not 1 or 5). Q is to P's immediate right (P, Q pair). R is second to the left of S (R ...... S). T is not adjacent to P or Q.

Step 3: Determine possible positions for P, Q. Since P is not at 1 or 5, P can be in 2, 3, or 4. Q is right of P, so: • P in 2 ⇒ Q in 3 • P in 3 ⇒ Q in 4 • P in 4 ⇒ Q in 5

Step 4: Apply R, S condition. R is second to the left of S. Possible pairs: • 1=R, 3=S • 2=R, 4=S • 3=R, 5=S

Step 5: Apply T condition. - Test P in 3, Q in 4: Seats ...... P Q .... . R, S: If 1=R, 3=S ⇒ conflict (3=P). If 2=R, 4=S ⇒ conflict (4=Q). If 3=R, 5=S ⇒ conflict (3=P). - Try P in 2, Q in 3: .... P Q .... R, S: 3=R, 5=S ⇒ conflict (3=Q). - Try P in 4, Q in 5: .... P Q R, S: 1=R, 3=S. T must be in 2 (not adjacent to P, Q). Arrangement: R T S P Q.

Step 6: Verify. P not at end (4th). Q right of P (5th). R second to left of S (1st and 3rd). T not adjacent to P or Q (2nd). Leftmost = T.

Step 7: Check options. Options: (1) R, (2) S, (3) T, (4) Cannot determine. T matches option (3).

Step 8: Conclusion. Option (3) is correct.

Answer 2

- Step 1: Use the arrangement from Q5. From Q5, the arrangement is R T S P Q (1st to 5th).
- Step 2: Identify S's position. S is in the 3rd position.
- Step 3: Find the person to the right. The 4th position is P.
- Step 4: Verify conditions. P not at end: P is 4th. Q right of P: Q is 5th. R second to left of S: R is 1st, S is 3rd. T not adjacent to P, Q: T is 2nd, not adjacent to P (4th) or Q (5th).
- Step 5: Check options. Options: (1) P, (2) Q, (3) T, (4) R. P matches option (1).
- Step 6: Cross-check. No other arrangement satisfies all conditions.
- Step 7: Conclusion. Option (1) is correct.

Answer 3

- Step 1: Use the arrangement. From Q5: R T S P Q.
- Step 2: Locate Q. Q is in the 5th position.
- Step 3: Verify. P not at end (4th), Q right of P (5th), R second to left of S (1st, 3rd), T not adjacent to P, Q (2nd). All conditions hold.
- Step 4: Check options. Options: (1) 2nd, (2) 3rd, (3) 4th, (4) 5th. Q in 5th matches option (4).
- Step 5: Conclusion. Option (4) is correct.

Answer 4

- Step 1: Use the arrangement. From Q5: R T S P Q.
- Step 2: Locate T and P. T is 2nd, P is 4th.
- Step 3: Identify the person between. Between 2nd and 4th is the 3rd position, which is S.
- Step 4: Verify. Arrangement: R (1), T (2), S (3), P (4), Q (5). S is between T and P.
- Step 5: Check options. Options: (1) R, (2) S, (3) Q, (4) None. S matches option (2).
- Step 6: Conclusion. Option (2) is correct.