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

Question

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

DAG, FCI, ?, JGM, LIO

1. A. GDJ
2. B. IFL
3. C. HKE
4. D. HEK (Correct answer)

Correct Answer

Option D — HEK

Detailed Solution & Explanation

The correct answer is HEK.

Key Points

• Treat each letter position as its own series rather than reading the clusters as words.
• Position 1: D, F, H, J, L — each +2. Position 2: A, C, E, G, I — each +2. Position 3: G, I, K, M, O — each +2.
• The missing cluster is therefore HEK.

Additional Information

• HKE is offered as a distractor: the right three letters in the wrong order. Always assemble the answer position by position.
• Verifying forward to the *given* later terms — JGM and LIO — confirms all three column rules at once, which is stronger than checking backwards only.
• Column-wise reading is the default technique for any letter series of equal-length clusters.

प्रश्न (हिन्दी में)

निम्नलिखित शृंखला में प्रश्न चिह्न (?) के स्थान पर आने वाला अक्षर-समूह चुनें।

DAG, FCI, ?, JGM, LIO

1. A. GDJ
2. B. IFL
3. C. HKE
4. D. HEK