Question

Select the letter-cluster from among the given options that can replace the question mark (?) in the following series. DAG, FCI, ?, JGM, LIO

• A. GDJ
• B. IFL
• C. HKE
• D. HEK

Answer 1

Answer:

D. HEK

Observe each position separately:

First letters:
D, F, H, J, L → increase by 2

Second letters:
A, C, E, G, I → increase by 2

Third letters:
G, I, K, M, O → increase by 2

So the missing letter-cluster is:

H E K

So, the answer is HEK.