The following question is based on the following alphabet series.
A  B  C  D  E  F  G  H  I  J  K  L  M
N  O  P  Q  R  S  T  U  V  W  X  Y  Z If the given alphabet is arranged in reverse order, which letter will be the eighth letter to the left of the seventh letter counting from the right end ?

Answer: B. O

The new alphabet series is :
Z  Y  X  W  V  U  T  S  R  Q  P  O  N
M  L  K  J  I  H  G  F  E  D  C  B  A

Counting from the right, the seventh letter is G.
The eight letter to the left of G is O.