All Exams Test series for 1 year @ ₹349 only
Question

What comes next in the series?
D, I, N, S, ?

This question was previously asked in
SSC CGL 2025 Tier 2 Paper 1 Question Paper (19-Jan-2026)
The correct answer is
X

Letter Series Pattern Analysis

The question presents a letter series: D, I, N, S, ? and asks for the next term.

Identifying the Pattern

To find the pattern, we convert the letters to their corresponding positions in the English alphabet:

  • D is the 4th letter.
  • I is the 9th letter.
  • N is the 14th letter.
  • S is the 19th letter.

Now, let's calculate the difference between the positions of consecutive letters:

  • Position of I - Position of D = $9 - 4 = 5$
  • Position of N - Position of I = $14 - 9 = 5$
  • Position of S - Position of N = $19 - 14 = 5$

The pattern is that each subsequent letter's position in the alphabet increases by 5.

Determining the Next Term

The position of the last given letter, S, is 19.

To find the position of the next letter, we add 5 to the position of S:

Next letter's position = $19 + 5 = 24$.

The 24th letter in the English alphabet is X.

Conclusion

Therefore, the next term in the series D, I, N, S, ? is X.

Was this answer helpful?

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

  10. From the given options, select the group of letters that, when inserted in order from left to right into the blanks of the incomplete series, will logically complete it.

    S__KB_FH_BSF_K_SF__B


Important Questions from Letter Based Series

  1. 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

  2. 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

  3. Select the triad that follows the same pattern as that followed by the two triads given below. Both triads follow the same pattern. 
    KF-MH-OQ 
    ID-KF-MO

  4. What should come in place of the question mark (?) in the given series based on the English alphabetical order? 
    BIG DKI FMK HOM ?

  5. Observe the following incomplete letter sequence carefully:
    aa_bbc_aa bb_aaac_cc.
    A specific pattern governs the order and repetition of the letters. Choose the option that best fills the blanks (in order) to complete the sequence logically and symmetrically.
Need Expert Advice?
Upcoming Exams
SSC JHT
September 08, 2026
SSC Stenographer
September 09, 2026
SSC Selection Post
September 16, 2026
Test Series
SSC CGL img
SSC
SSC CGL (Tier I + Tier II) 2026 Mock Test Series - Latest Pattern
2500 Tests 6 Tests Free
3729 Attempts
4.2(832)
English, Hindi

Start Your Preparation with Prepp Mobile App

Download the app from Google Play & App Store
Download the app from Google Play & App Store
Prepp Mobile App