General Aptitude TestGeneral AbilityLetter Series

Select the option that can replace the question mark (?) in the follo…

Select the option that can replace the question mark (?) in the following series.

QD, OB, MZ, KX, ?

Answer & explanation

Correct answer: option 4

Explanation:

QD, OB, MZ, KX, ?

The logic followed here is :

Q → (-2) → O → (-2) → M → (-2) → K → (-2) → I

D → (-2) → B → (-2) → Z → (-2) → X → (-2) → V

So, the letter-cluster that replaces the (?) to complete the series is "IV"