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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 NTPC 2025 Graduate Level CBT 1 Question Paper (25-Mar-2026) (Shift 3)
The correct answer is

IT – KV

To solve this question, we need to identify the unique letter-cluster pair among the options provided, based on a certain pattern using the English alphabetical order.

First, let's evaluate the letter pairs given:

  1. DG – EH
  2. SJ – TK
  3. KE – LF
  4. IT – KV

Our goal is to determine the pattern or rule that applies to three of these pairs and identify the one that does not fit.

Step-by-Step Analysis:

  • Pair DG – EH:
    • D is the 4th letter of the alphabet.
    • G is the 7th letter of the alphabet.
    • E is the 5th letter of the alphabet.
    • H is the 8th letter of the alphabet.
    • The pattern: D + 1 = E and G + 1 = H.
  • Pair SJ – TK:
    • S is the 19th letter of the alphabet.
    • J is the 10th letter of the alphabet.
    • T is the 20th letter of the alphabet.
    • K is the 11th letter of the alphabet.
    • The pattern: S + 1 = T and J + 1 = K.
  • Pair KE – LF:
    • K is the 11th letter of the alphabet.
    • E is the 5th letter of the alphabet.
    • L is the 12th letter of the alphabet.
    • F is the 6th letter of the alphabet.
    • The pattern: K + 1 = L and E + 1 = F.
  • Pair IT – KV:
    • I is the 9th letter of the alphabet.
    • T is the 20th letter of the alphabet.
    • K is the 11th letter of the alphabet.
    • V is the 22nd letter of the alphabet.
    • Notice here, I + 2 ≠ K and T + 2 ≠ V (No uniform increment pattern).

Conclusion: The rule for the first three pairs is consistent. Each letter in the first pair is increased by 1 to form the second letter. However, the pair IT – KV deviates from this rule, as the letters don't follow a consistent increment.

Therefore, the letter-cluster pair IT – KV is the odd one out, as it does not follow the same pattern as the other three pairs.

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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 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.)

  2. 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.)

  3. 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.)


Important Questions from Classification

  1. In the following question, four number pairs are given. In each pair the number on left side of (-) is related to the number of the right side of (-) with some Logic/Rule/Relation. Three pairs are similar on basis of same Logic/Rule/Relation.
    Select the odd one out from the given alternatives. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g.13 - Operations on 13 such as adding /subtracting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed)

  2. Three of the following four 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 one out is not based on the number of consonants/vowels or their position in the letter cluster.)

  3. Three of the following numbers are alike in a certain way and one is different. Pick the odd one out.

    (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 – Operations on 13 such as adding/deleting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

  4. The following contains two pairs of words which are related to each other in a certain way. Three of the following four word-pairs are alike as these have the same relationship and thus form a group. Which word-pair does NOT belong to that group?
    (The words must be considered as meaningful English words and must not be grouped based on the number of letters/number of consonants/vowels in the word)

  5. Three of the following four options are alike in a certain way and thus form a group. Which is the one that does NOT belong to that group?

    (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g., 13 – Operations on 13 such as adding/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

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