Based on the English alphabetical order, three of the following four…
2025
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.)
Answer: B. TX-PV — Concept: In an alphabet letter-cluster series, each two-letter cluster is converted to alphabet positions (A=1 ... Z=26); three of the four pairs share the…
- A.
LP-HM
- B.
TX-PV
- C.
OS-KP
- D.
RV-NS
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Show answer & explanation
Correct answer: B
Concept: In an alphabet letter-cluster series, each two-letter cluster is converted to alphabet positions (A=1 ... Z=26); three of the four pairs share the SAME ordered step-gap pattern — one fixed step within the first cluster followed by another fixed step within the second cluster — and the outlier is the pair whose ordered step-gap pattern differs from that shared pattern.
Application: Convert each pair's letters to positions and compute the forward step from the first letter to the second letter of each two-letter cluster:
Letter-cluster pair | Step within 1st cluster | Step within 2nd cluster |
|---|---|---|
LP-HM | 4 (L→P) | 5 (H→M) |
TX-PV | 4 (T→X) | 6 (P→V) |
OS-KP | 4 (O→S) | 5 (K→P) |
RV-NS | 4 (R→V) | 5 (N→S) |
Three pairs share the same step pattern of 4 then 5; one pair breaks this pattern with steps of 4 then 6.
Cross-check: As an independent check, add each pair's two steps together:
Letter-cluster pair | Combined step total |
|---|---|
LP-HM | 9 |
TX-PV | 10 |
OS-KP | 9 |
RV-NS | 9 |
Three combined totals equal 9, while one totals 10, confirming the same pair as the exception.
Result: TX-PV is the pair whose second-cluster step is 6 instead of 5 (and whose combined total is 10 instead of 9), so TX-PV does not belong to the group formed by the other three pairs.