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If each vowel in the word HISTORY is changed to the letter preceding it in the English alphabetical order and each consonant is changed to the letter following it in the English alphabetical order, then how many vowels will be there in the group of letters thus formed?
1
0
3
2
2
Identify each letter in the word as either a vowel or consonant first, apply the exact respective rule (+1 or -1 in alphabetical order), then count the resulting vowels.
Identify each letter in the word as either a vowel or consonant first, apply the exact respective rule (+1 or -1 in alphabetical order), then count the resulting vowels.
Analyze Original Word and Letter Types
The given word is HISTORY. The vowels in HISTORY are I and O. The consonants are H, S, T, R, and Y.
Apply Transformation Rules
Vowels are changed to the preceding letter (-1): I becomes H, O becomes N. Consonants are changed to the following letter (+1): H becomes I, S becomes T, T becomes U, R becomes S, Y becomes Z.
Form New Group and Count Vowels
The new group of letters formed is I, H, T, U, N, S, Z. Examining this group, none of the letters (I, H, T, U, N, S, Z) are vowels (A, E, I, O, U). Therefore, the total number of vowels is 0.
A: 1 is incorrect because no vowels remain in the transformed word. B: 3 is incorrect as there are only two vowels originally, both of which are changed to consonants. C: 2 is incorrect since both vowels are transformed into non-vowels. D: 0 is correct as verified by letter-by-letter transformation.
D is correct because after applying the transformation rules, the resulting word is IHTUNSZ, which contains 0 vowels.
Always list out the exact transformed string letter-by-letter to avoid miscounting vowels or consonants in shifting rule questions.
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