Question

Select the letter-cluster from among the given options that can replace the question mark (?) in the following series: MCFI, NEKP, OGPW, PIUD, ?

• A. NKYD
• B. QLYL
• C. QKZK
• D. QKZL

Answer 1

Answer:

C. QKZK

Break the series column-wise:

MCFI
NEKP
OGPW
PIUD
?

1st letters: M → N → O → P → Q ( +1 each time )

2nd letters: C → E → G → I → K ( +2 each time )

3rd letters: F → K → P → U → Z ( +5 each time )

4th letters: I → P → W → D → K
( +7 each time with wrap-around: W +7 → D, D +7 → K )

So the next term is:

Q K Z K