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In the word BLEACH, each consonant is changed to the letter immediately preceding it in the English alphabetical order and each vowel is changed to the letter immediately succeeding it in the English alphabetical order. Which of the following letters is repeated twice in the new group of letters thus formed?
A
K
F
B
B
Map vowels and consonants separately first, then immediately check for repeating characters before full word construction.
Map vowels and consonants separately first, then immediately check for repeating characters before full word construction.
Categorize letters of BLEACH
Consonants are B, L, C, H. Vowels are E, A.
Apply transformation rules
Consonants (-1): B → A, L → K, C → B, H → G. Vowels (+1): E → F, A → B. The new sequence is A, K, F, B, B, G.
Identify repeated letter
The resulting group is A, K, F, B, B, G. The letter B is repeated twice.
A: A appears only once in the final set. B: K appears only once in the final set. C: F appears only once in the final set.
D is correct because the transformation of the letters in BLEACH results in A, K, F, B, B, G, where B is the only letter that repeats twice.
When dealing with letter transformations, always list the rule for consonants and vowels distinctly at the start to avoid processing errors.
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