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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.)
VS-PU
YV-SW
RO-LQ
TQ-NS
YV-SW
Calculate the alphabetical forward/backward difference between the first and second letter of each cluster pair to spot the anomaly.
Calculate the alphabetical forward/backward difference between the first and second letter of each cluster pair to spot the anomaly.
Analyze Pair A (VS - PU)
For VS: V (22) - 3 = S (19). For PU: P (16) + 5 = U (21). The pattern is -3 and +5.
Analyze Pair B (YV - SW)
For YV: Y (25) - 3 = V (22). For SW: S (19) + 4 = W (23). The second interval is +4 instead of +5, making this the odd one.
Verify Pairs C and D
RO gives R(18)-3=O(15) and L(12)+5=Q(17). TQ gives T(20)-3=Q(17) and N(14)+5=S(19). Both follow the -3, +5 rule.
A: VS - PU follows the consistent -3, +5 positional shift pattern. C: RO - LQ follows the consistent -3, +5 positional shift pattern. D: TQ - NS follows the consistent -3, +5 positional shift pattern.
B is correct because the letter-cluster pair YV-SW uses a +4 shift in the second part instead of the standard +5 shift found in the other three options.
When analyzing letter pairs or clusters, always check both the forward and backward numerical intervals between adjacent letters using standard A=1 to Z=26 positions.
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