In which of the given pairs of people, is even number of people sitting between them?

Only two persons sit between E and the one sitting at extreme ends of the line, => E sits fourth from the left end of the line.

Also, K sits second to the right of E.

H sits fourth to the left of M and M does not sit at any of the extreme ends of the line and M is not an immediate neighbour of E,

=> M sits to the immediate right of K and H sits to the immediate left of E.

Since, the number of people sitting between H and K are 2, thus only 1 person is sitting between M and O, => O is sitting second to the left of M.

More than two people sit between G and E and G is not an immediate neighbour of M, => G sits at the right end of the line.

F is an immediate neighbour of L but not H, => F sits to the left end of the line and L to its immediate right.

The only vacant position now is taken by N. The arrangement is :

Number of persons sitting between :

G & E = 4   (even)

K & L = 3

F & M = 5

O & M = 1

K & N = 1

=> Ans - (A)