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Question

Select the letter-cluster from among the given options that can replace the question mark (?) in the following series:
ACE, BDF, CEG, ?

This question was previously asked in
SSC CGL 2025 Tier 1 Question Paper (25-Sep-2025) (Shift 3)
The correct answer is
DFH

Letter Series Pattern Analysis

The question presents a series of three-letter clusters: ACE, BDF, CEG, ? We need to find the pattern governing this series to determine the missing cluster.

Identifying the Alphabetical Progression

Let's analyze the progression of each letter position across the series:

  • First Letter: The first letters of the clusters are A, B, C. Each subsequent letter is the next letter in the alphabet (A + 1 = B, B + 1 = C). Following this pattern, the next first letter is C + 1 = D.
  • Second Letter: The second letters are C, D, E. Each subsequent letter is also the next letter in the alphabet (C + 1 = D, D + 1 = E). Therefore, the next second letter is E + 1 = F.
  • Third Letter: The third letters are E, F, G. Similarly, each subsequent letter is the next in the alphabet (E + 1 = F, F + 1 = G). The next third letter is G + 1 = H.

Determining the Missing Cluster

Combining the next letters for each position (D, F, H), we find the missing cluster in the series is DFH.

This corresponds to Option A.

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Similar Questions

  1. Which of the following alternative will fill the blanks?
    _f_hk_gh_fg_k
  2. In the sequence A, C, F, J..., which letter is the $5^{th}$?
  3. Select the letter-cluster from among the given options that can replace the question mark (?) in the following series:
    M C K J H N G M Q D R T ?
  4. What comes next in the series?
    D, I, N, S, ?
  5. What comes next in the series? 

    A, C, F, J, O, ?

  6. What comes next? 

    LM, KN, JO, IP, ?

  7. What comes next in the series?
    A, C, F, J, ?
  8. What comes next?
    AG, BH, CI, ?
  9. Which letter trio does NOT follow the ascending order? ABC, BCD, CDE, DFE, EFG


Important Questions from Letter Based Series

  1. Select the option that represents the letters that when placed from left to right in the blanks below will complete the given letter series.

    M N _ O J K M _ Q O J K _ N Q _ J K M N Q O _ K M N

  2. Select the option that represents the letters that when placed from left to right in the blanks below will complete the given letter series. 

    B _ E N B _ C E N B B C _ N B B C E _ B _ C

  3. Select the option that is related to the fifth letter-cluster in the same way as the second letter-cluster is related to the first letter-cluster and the fourth letter-cluster is related to the third letter-cluster.

    MSD: NHW :: OAE : LZV :: NIP : ?

  4. Select the option that represents the letters that when sequentially placed from left to right in the blanks below will complete the letter series.

    Y _ Y _ _ Y _ T _ Y _ Y

  5. Select the option that represents the letters that when sequentially placed from left to right in the blanks below will complete the letter series.

    Y _ Y _ _ Y _ T _ Y _ Y

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