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If each letter of the word WELDING is changed to the letter immediately succeeding it in the English alphabetical order and the new group of letters thus formed is rearranged in English alphabetical order, then which letter is the third from the left in the new rearranged group of letters?
J
E
H
F
H
Apply the successor rule (+1) to each letter of WELDING to get XFMMEOH, then sort alphabetically to find the 3rd letter.
Apply the successor rule (+1) to each letter of WELDING to get XFMMEOH, then sort alphabetically to find the 3rd letter.
Step 1: Successor transformation (+1)
Replace each letter in WELDING with its immediate next letter in the English alphabet: W тЖТ X, E тЖТ F, L тЖТ M, D тЖТ E, I тЖТ J, N тЖТ O, G тЖТ H. The new group is XFMMEOH.
Step 2: Alphabetical rearrangement
Arrange the letters of XFMMEOH in alphabetical order: E, F, H, J, M, O, X.
Step 3: Identify the 3rd letter from the left
Counting from the left in the sorted sequence (E, F, H, J, M, O, X), the 1st is E, the 2nd is F, and the 3rd is H.
A: J is incorrect because J is the 4th letter in the sorted sequence. B: E is incorrect because E is the 1st letter in the sorted sequence. D: F is incorrect because F is the 2nd letter in the sorted sequence.
C is correct because changing each letter of WELDING to its successor gives XFMMEOH, and sorting this alphabetically yields EFHJMOX, where H is the 3rd letter from the left.
Always perform the transformation step precisely before sorting, and double-check whether the question asks for counting from the left or right.
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