In this type of questions, a series of single, pairs or groups of letters or combinations of letters and numerals are given. The terms of the series form a certain pattern as regards the position of the letter in the English alphabet. Find the missing or wrong term in series 

1)

A, I, P, V, A, E, ?


A) F

B) G

C) E

D) H

Answer:

Option D

Explanation:

$A + 8 \rightarrow I, I + 7 \rightarrow P, P + 6 \rightarrow V,$

$V + 5 \rightarrow A, A + 4\rightarrow E, E + 3\rightarrow H $

Hence the answer is (d).