Select the letter-cluster from among the given options that can replace the question mark(?) in the following series.
ABD, CEI, EHN, ?
Answer & explanation
Correct answer: option 4
Explanation:
ABD, CEI, EHN, ?
The logic followed here is :
A → (+2) → C → (+2) → E → (+2) → G
B → (+3) → E → (+3) → H → (+3) → K
D → (+5) → I → (+5) → N → (+5) → S
So, the letter-cluster that replaces the (?) to complete the series is "GKS"