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 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 Grade III Official Paper (Held On: 28 Dec, 2024 Shift 1)
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  1. LP-KN 
  2. FJ-EH 
  3. OS-NR  
  4. IM-HK  

Answer (Detailed Solution Below)

Option 3 : OS-NR  
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Detailed Solution

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Common Diagram 28.01.2020 D1

The logic followed here is:

Option 1) LP-KN

qImage67c8698a1ff55048f685bf45

Option 2) FJ-EH

qImage67c8698b1ff55048f685bf47

Option 3) OS-NR

qImage67c8698b1ff55048f685bf48

Option 4) IM-HK

qImage67c8698b1ff55048f685bf49

Thus, out of all the options 'OS-NR' is the odd one out.

Hence, "Option 3" is the correct answer.

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