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Refer to the word series: CUP BAT DOG HEN. In each word, change each vowel to the next letter in the alphabet and each consonant to the next letter. How many of the resulting letter-clusters will have exactly one vowel?
1
2
3
4
2
Instead of converting all letters, focus only on how many vowels become consonants and vice versa to track the total vowel count in each cluster.
Instead of converting all letters, focus only on how many vowels become consonants and vice versa to track the total vowel count in each cluster.
Mapping the transformations
Apply the rule: Vowel (+1), Consonant (+1). CUP: C(cons+1)=D, U(vow+1)=V, P(cons+1)=Q. Result: DVQ (0 vowels). BAT: B(cons+1)=C, A(vow+1)=B, T(cons+1)=U. Result: CBU (1 vowel: U). DOG: D(cons+1)=E, O(vow+1)=P, G(cons+1)=H. Result: EPH (1 vowel: E). HEN: H(cons+1)=I, E(vow+1)=F, N(cons+1)=O. Result: IFO (2 vowels: I, O).
Counting clusters with exactly one vowel
Checking the results: DVQ has 0 vowels. CBU has 1 vowel (U). EPH has 1 vowel (E). IFO has 2 vowels (I, O). The clusters with exactly one vowel are CBU and EPH. Total count is 2.
Option A is incorrect because there are 2 clusters, not 1. Option C is incorrect as the count is not 3. Option D is incorrect as the count is not 4.
B is correct because the transformations result in CBU and EPH as the only two clusters containing exactly one vowel.
When asked to count specific types of letters (vowels/consonants) after shifts, always list the transformed vowels explicitly (A, E, I, O, U) to avoid missing them during mental processing.