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Which of the following letter-clusters does not belong to the group? (A) BDF, (B) KMO, (C) PRT, (D) GIK
BDF
KMO
PRT
GIK
GIK
Check for vowel presence first when positional step patterns (+2, +2) are identical across all options.
Check for vowel presence first when positional step patterns (+2, +2) are identical across all options.
Step 1: Check Positional Gaps
BDF (+2), KMO (+2), PRT (+2), and GIK (+2) all share the exact same consecutive +2 positional jump.
Step 2: Analyze Vowel/Consonant Mix
Cluster D (GIK) contains vowel I, whereas BDF, KMO, and PRT are composed strictly of consonants.
A: Pure consonant cluster with uniform +2 gap. B: Pure consonant cluster with uniform +2 gap. C: Pure consonant cluster with uniform +2 gap.
D is correct because GIK contains the vowel I while the other three clusters consist solely of consonants.
When numerical step patterns yield ties across all options, immediately shift check to vowel-consonant composition or mirror symmetry.
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