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C3F6M13015?14What will be written in the place of question mark in the given series?
Question

C3F6M13015?14
What will be written in the place of question mark in the given series?

A.

O

B.

N

C.

M

D.

P

Correct option is B

Series:
C 3 F 6 M 13 O 15 ? 14

Letters pattern:
C → F (+3)
F → M (+7)
M → O (+2)
O → N (−1)

So missing letter = N

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