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 one out is not based on the number of consonants/vowels or their position in the letter-cluster.)
IJ - MN
Write each letter's place in the English alphabet (A = 1, …, Z = 26) and compare the first letters of the two clusters with each other, and the second letters with each other.
| Pair | First letters | Second letters |
| IJ - MN | I (9) → M (13): +4 | J (10) → N (14): +4 |
| LJ - KM | L (12) → K (11): –1 | J (10) → M (13): +3 |
| DB - CE | D (4) → C (3): –1 | B (2) → E (5): +3 |
| MK - LN | M (13) → L (12): –1 | K (11) → N (14): +3 |
In LJ - KM, DB - CE and MK - LN the first letter moves 1 place back and the second letter moves 3 places forward. In IJ - MN both letters move 4 places forward.
Therefore IJ - MN does not follow the pattern shared by the other three pairs.
Check: moving I back by 1 gives H and moving J forward by 3 gives M, so the pair would have to be IJ - HM to fit the group; IJ - MN breaks the rule.
Hence, IJ - MN.
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Important Questions from Letter Based
Select the related letters from the given alternatives:
JOKE : GLHB : : RISK : ?Select the related letters from the given alternatives:
MAN : PDQ : : WAN : ?In the following question, select the related letter/letters from the given alternatives.
ACE : KMO : : BDF : ?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 : ?
Select the pair that is related on the same basis to the pair given in the question.
MTA : JQX : GNU :: ?
