Ans C.
Sequence Number of Letter
Z |
W, V |
R, Q, P |
26 |
23, 22 |
18, 17, 16 |
LKJI |
JIHG |
KJIH |
NMLK |
12, 11, 10, 9 |
10, 9, 8, 7 |
11, 10, 9, 8 |
14, 13, 12, 11 |
Number of Letters increasing in – 1 – 2 – 3 – (4 letters)
Difference in Letter coding Between terms
First – Second = $26-23=3$ (Y, X, W)
Second – Third = $18-22=4$ (U, T, S, R)
Third – Fourth = $16-x= 5, x=11$ Starting from K