Question

A, B, C, D, E, F and G are sitting on a wall and all of them are facing east. C is on the immediate right of D. B is at an extreme end and has E as his neighbour. G is between E and F. D is sitting third from the south end. Which of the following pairs of people are sitting at the extreme ends?

• A. CB
• B. AE
• C. AB
• D. DE

Hint:

In seating arrangement puzzles, always establish the directions (left/right vs. North/South) first. Then, use the most concrete clue (like position from an end) to create a base structure to build upon.

Answer 1

The Correct Option is C

Let's solve this seating arrangement puzzle step-by-step. Step 1: Set up the arrangement and directions. There are 7 people on a wall facing East. Let's represent the 7 spots: _ _ _ _ _ _ _ When facing East, your left is to the North and your right is to the South. So, the "south end" is the rightmost end of the wall.

Step 2: Use the most definite clue first. "D is sitting third from the south end." The south end is the rightmost position. So, D is at the 3rd spot from the right. The arrangement is: _ _ _ _ D _ _

Step 3: Add the next related clue. "C is on the immediate right of D." Since they are facing East, C is to the immediate South of D. The arrangement becomes: _ _ _ _ D C _

Step 4: Use the clues about the ends. "B is at an extreme end and has E as his neighbour." B can be at the north (left) end or the south (right) end.
Case 1 (B at south end): If B is at the rightmost end, the arrangement would be _ _ _ _ D C B. In this case, C is B's neighbour. But the clue says E is B's neighbour. This is a contradiction. So, this case is incorrect.
Case 2 (B at north end): B must be at the leftmost end. E is B's neighbour. The arrangement becomes: B E _ _ D C _

Step 5: Use the remaining clues. "G is between E and F." This means they sit together in the order E-G-F. We can fit this block into the empty spaces. The arrangement becomes: B E G F D C _

Step 6: Place the last person. The only person left is A, and there is one empty spot at the south end. The final arrangement from North to South is: B E G F D C A

Step 7: Answer the question. The question asks for the pair of people at the extreme ends. The person at the North end is B. The person at the South end is A. The pair at the extreme ends is (A, B).