Direction to solve:

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 


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21.

AB, DEF, HIJK, ?, STUVWX


A) LMNO

B) LMNOP

C) MNOPQ

D) QRSTU



22.

Z, U, Q, ?, L


A) K

B) M

C) N

D) I



23.

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


A) F

B) G

C) E

D) H



24.

A, D, H, M, ?, Z


A) G

B) T

C) S

D) N



25.

a, d, c, f, ?, h, g, ?, i 


A) e, j

B) e, k

C) f, j

D) j, e



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