In a conference, five participants are seated in a row: Alan, Bob, Chris, David and Edward. Alan is not next to Chris. Bob is seated between Alan and David. Alan sits on one end. David is not next to Edward. Who is seated in the middle ?

Given : In a conference, five participants are seated in a row: Alan, Bob, Chris, David and Edward.

Explanation :

1) Alan sits on one end.

2) Bob is seated between Alan and David.

As Alan is sitting at one of the ends of the row therefore there are two possible cases.

• Case - (1) : 

• Case - (2) :

3) Alan is not next to Chris.

4) David is not next to Edward.

• Case - (1) : 

• Case - (2) :

Thus, according to the final arrangement David is seated in the middle of the row in both the cases.

Hence, "David" is the correct answer.