Which of the following letter-clusters will replace the question mark (?) in the given series to make it logically complete?
AZX, CBZ, EDB, GFD, ?
Answer & explanation
Correct answer: option 1
Explanation:
AZX, CBZ, EDB, GFD, ?
The logic followed here is :
A → (+2) → C → (+2) → E → (+2) → G → (+2) → I
Z → (+2) → B → (+2) → D → (+2) → F → (+2) → H
X → (+2) → Z → (+2) → B → (+2) → D → (+2) → F
So, the letter-cluster that replaces the (?) to complete the series is "IHF"