Question

Five friends (A, B, C, D, and E) are sitting in a row. C is to the immediate right of A. D is at one end and B is between D and E. Who is in the middle?

• A. A
• B. B
• C. C
• D. E

Hint:

• Break down the problem into small pieces of information.
• Use placeholders for positions in the row.
• Consider different cases based on conditions like "D is at one end".
• Combine fixed units (like "A C" together) with other conditions.
• Check consistency of arrangements. The middle person in a row of 5 is the 3rd person.

Answer 1

The Correct Option is D

Five friends are seated in a row. Positions are represented by underscores: ____.
Given:

• C is immediately to the right of A, forming the block (A C).
• D occupies an end position (leftmost or rightmost).
• B is situated between D and E, indicating sequences D B E or E B D.

Combining the information: 
Scenario 1: D is at the leftmost position.
D ____ 
As B is between D and E, the sequence begins D B E: 
D B E ____
The remaining slots are filled by (A C). 
Resulting arrangement: D B E A C. 
Verification: Condition 1 (A C together) is met. 

Positions:

• 1: D
• 2: B
• 3: E
• 4: A
• 5: C

The middle occupant (position 3) is E. 
Scenario 2: D is at the rightmost position.
____D 
As B is between D and E, the sequence ends E B D (read left-to-right): 
__ ___E B D 
The remaining slots are filled by (A C). 
Resulting arrangement: A C E B D. Positions:

• 1: A
• 2: C
• 3: E
• 4: B
• 5: D

The middle occupant (position 3) is E. In both valid configurations, E occupies the middle position. 
\[ \boxed{\text{E}} \]