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If each letter of the word TYPING is changed to the letter immediately preceding it in the English alphabetical order and the new group of letters thus formed is rearranged in English alphabetical order, then which letter is first to the right in the new rearranged group of letters?
O
X
M
S
X
Apply the predecessor rule to each letter first, then write down the resulting group. Finally, sort the letters alphabetically and locate the required position.
Apply the predecessor rule to each letter first, then write down the resulting group. Finally, sort the letters alphabetically and locate the required position.
Step 1: Replace each letter with its predecessor
Taking the word TYPING, each letter is replaced by the letter immediately preceding it in the English alphabet: T becomes S, Y becomes X, P becomes O, I becomes H, and G becomes F. This forms the group S X O H F.
Step 2: Rearrange in alphabetical order
Arranging the letters S, X, O, H, F in English alphabetical order gives: F, H, O, S, X.
Step 3: Identify the requested position
The question asks for the letter 'first to the right', which means the last letter on the right end of the rearranged sequence F H O S X. That letter is X.
A: O is the middle letter (3rd from either end). C: M is not present in the derived group. D: S is the 4th letter from the left.
B is correct because replacing each letter of TYPING with its predecessor gives S, X, O, H, F, which when arranged alphabetically becomes F, H, O, S, X, making X the first letter to the right.
Always read carefully whether the question asks for position from the left or right end after rearrangement to avoid reversing the final index.
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