# Verbal Reasoning →Series Completion → Alphabet Series: Question – 19

Find the missing term in the following series:
C, Z, F, X, I, V, L, T, O, ?, ?
[A]O, P
[B]P, Q
[C]R, R
[D]S, R

R, R
In the above question, the pattern is, the given sequence is a combination of two series :
I. C, F, I, L, O, ?
II. Z, X, V, T, ?
The pattern in I is
$C\xrightarrow{\text{+3}}F\xrightarrow{\text{+3}}I \xrightarrow{\text{+3}}L\xrightarrow{\text{+3}} O\xrightarrow{\text{+3}} \textcircled{R}$
The pattern is II is
$Z\xrightarrow{\text{-2}}X\xrightarrow{\text{-2}} V\xrightarrow{\text{-2}} T\xrightarrow{\text{-2}} \textcircled{R}$