In this type of questions, you are given alphabets from A to Z. The position of a letter is given in the form of a puzzle. The candidate is required to find yhis letter. However, sometimes a random letter series is given and the candidate is required to find out how many times a letter satisfying the conditions specified in the question, occurs.

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

Which letter is the seventh to the right of the thirteenth letter from your left ?

A. S
B. T
C. U
D. V
E. None of these
Answer: B . T


Counting from the left i.e. A in the given alphabet, the thirteenth letter is M. Counting from M towards the right, the seventh letter is T.