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Question

Based on the English alphabetical order, three of the following four letter-cluster pairs are alike in a certain way and thus form a group. Which letter-cluster pair DOES NOT belong to that group?

(Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)

This question was previously asked in
RRB Technician 2026 Grade 3 Question Paper (7-Oct-2026) (Shift 3)
The correct answer is

MO - CT

Use alphabet positions (A = 1 … Z = 26) and look at each cluster separately.

OS - EV: O(15) → S(19) is +4; E(5) → V(22) is +17, i.e. −9 cyclically.

YC - OF: Y(25) → C(3) is +4 (wrapping past Z); O(15) → F(6) is −9.

DH - TK: D(4) → H(8) is +4; T(20) → K(11) is −9.

MO - CT: M(13) → O(15) is only +2, while C(3) → T(20) is −9. The first cluster breaks the +4 rule.

Hence, the answer is MO - CT.

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Similar Questions

  1. Based on the English alphabetical order, three of the following four letter-cluster pairs are alike in a certain way and thus form a group. Which is the one that does not belong to that group?

    (Note: The odd man out is not based on the number of consonants/vowels or their position in the letter-cluster.)

  2. This question is based on the following words.

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  4. Based on the English alphabetical order, three of the following four letter-clusters are alike in a certain way and thus form a group. Which letter-cluster DOES NOT belong to that group? (Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)

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Important Questions from Letter Based

  1. Select the related letters from the given alternatives:

    JOKE : GLHB : : RISK : ?
  2. Select the related letters from the given alternatives:

    MAN : PDQ : : WAN : ?
  3. In the following question, select the related letter/letters from the given alternatives.

    ACE : KMO : : BDF : ?
  4. Select the option that is related to the third term in the same way as the second term is related to the first term.

    JMP : HON :: ADG : ?

  5. Select the pair that is related on the same basis to the pair given in the question.

    MTA : JQX : GNU :: ?

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