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Question

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

B, E, H, K, ?, Q

This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is
N

Letter Series Analysis

The task is to identify the missing letter in the given alphabetical series: B, E, H, K, ?, Q.

Alphabetical Pattern Identification

We first find the position of each letter in the English alphabet:

  • B = 2
  • E = 5
  • H = 8
  • K = 11
  • Q = 17

Next, we calculate the difference between the numerical positions of consecutive letters:

  • $5 - 2 = 3$
  • $8 - 5 = 3$
  • $11 - 8 = 3$

The pattern reveals a consistent increase of 3 positions between each letter in the series.

Calculating the Missing Letter

To find the missing letter, we add 3 to the position of K (which is 11):

Position of missing letter = Position of K + 3

Position of missing letter = $11 + 3 = 14$

The 14th letter of the alphabet is N.

Verifying the Sequence

We check if the pattern continues to the next letter, Q (position 17), after N (position 14):

Position of Q = Position of N + 3

$17 = 14 + 3$

This confirms the pattern holds true.

Conclusion

The missing letter in the series is N. Therefore, option 1 is the correct choice.

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Similar Questions

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    CHR HMW MRB RWG ?
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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.

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  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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