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Select the letter-cluster from among the given options that can replace the question mark (?) in the following series: PCHJ, PGPV, PKXH, POFT, ?

APSNF

BPRPG

CPSOF

DPSMF

Answer:

A. PSNF

Read Explanation:

Analyze each position separately:

Position

1st

2nd

3rd

4th

Next

1st letter

P

P

P

P

P

2nd letter

C

G

K

O

S (+4 each time)

3rd letter

H

P

X

F

N (+8 each time, wrapping after Z)

4th letter

J

V

H

T

F (+12 each time, wrapping after Z)

So the missing letter-cluster is:

PSNF

Answer: PSNF


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