Based on the English alphabetical order, three of the following four…
2026
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.)
Answer: B. CE - GI — ConceptAssign each English letter its alphabetical position: A = 1, B = 2, ..., Z = 26. For a pair of letter clusters, compare every letter of the first…
- A.
TV - WY
- B.
CE - GI
- C.
HJ - KM
- D.
KM - NP
Attempted by 34 students.
Show answer & explanation
Correct answer: B
Concept
Assign each English letter its alphabetical position: A = 1, B = 2, ..., Z = 26.
For a pair of letter clusters, compare every letter of the first cluster with the letter occupying the same place in the second cluster. Pairs that belong to one group share the same positional displacement; the odd pair uses a different displacement.
Application
For TV - WY, T(20) → W(23) and V(22) → Y(25); both positions increase by 3.
For CE - GI, C(3) → G(7) and E(5) → I(9); both positions increase by 4.
For HJ - KM, H(8) → K(11) and J(10) → M(13); both positions increase by 3.
For KM - NP, K(11) → N(14) and M(13) → P(16); both positions increase by 3.
Cross-check
Pair | First cluster | Second cluster | Displacement |
|---|---|---|---|
TV - WY | 20, 22 | 23, 25 | +3 |
CE - GI | 3, 5 | 7, 9 | +4 |
HJ - KM | 8, 10 | 11, 13 | +3 |
KM - NP | 11, 13 | 14, 16 | +3 |
The inner structure is the same everywhere — the two letters of each cluster are 2 positions apart — so the grouping can only come from the cluster-to-cluster displacement, and the note in the question confirms that vowel/consonant counts are not the basis.
Reversing the rule checks the grouping: moving each letter of TV, HJ and KM forward by 3 gives WY, KM and NP respectively, whereas CE must be moved forward by 4 to give GI.
Therefore, CE - GI does not belong to the group.