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Refer to the word series: FIX MAP RUN ZOO. In each word, change each vowel to the previous letter in the alphabet and each consonant to the next letter. How many of the resulting letter-clusters will have at least one vowel?
1
2
3
4
3
Identify vowels (A, E, I, O, U) first. Since vowels change to the previous letter, they only become vowels if they were E (becomes D), I (becomes H), O (becomes N), U (becomes T), or A (becomes Z). Consonants change to the next letter, so they form a vowel only if they were D, H, N, T, or Z.
Identify vowels (A, E, I, O, U) first. Since vowels change to the previous letter, they only become vowels if they were E (becomes D), I (becomes H), O (becomes N), U (becomes T), or A (becomes Z). Consonants change to the next letter, so they form a vowel only if they were D, H, N, T, or Z.
Transformation Rules
Rule: Consonants move to next alphabet (+1), Vowels move to previous alphabet (-1). Alphabet sequence: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z.
Word Mapping
FIX: F(cons+1)=G, I(vow-1)=H, X(cons+1)=Y. Result: GHY (No vowels). MAP: M(cons+1)=N, A(vow-1)=Z, P(cons+1)=Q. Result: NZQ (No vowels). RUN: R(cons+1)=S, U(vow-1)=T, N(cons+1)=O. Result: STO (Contains O). ZOO: Z(cons+1)=A, O(vow-1)=N, O(vow-1)=N. Result: ANN (Contains A).
Final Count
The resulting clusters are GHY, NZQ, STO, ANN. Clusters containing at least one vowel are STO and ANN. Total count = 2.
A: 1 is incorrect as we found 2 clusters. C: 3 is incorrect as only two clusters satisfy the criteria. D: 4 is incorrect because two clusters (GHY and NZQ) contain no vowels.
B is correct because the transformation results in STO and ANN, both of which contain at least one vowel, totaling 2.
In transformation questions, don't write out every single letter unless necessary; focus only on identifying if a vowel exists in the final string to save time.