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, B, N, C, D, O, E, F, P, ?, ?, ?


A) G, H, I

B) G, H, J

C) G, H, Q

D) J, K, L

Answer:

Option C

Explanation:

The given series may be divided into two groups:

I; A, B, C, D, E, F, ?, ?   II; N, O, P, ?

Clearly, the given series consists of two terms of I followed by one term of II.

The missing term in I are G and H and the missing term in II is  Q.

Hence the answer is (c).