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The position(s) of how many letters will remain unchanged if each of the letters in the word DEFAULT is arranged in the English alphabetical order?
0
2
1
3
0
Write the original word and the sorted alphabetical sequence one above the other, then identify letters that share the same position.
Write the original word and the sorted alphabetical sequence one above the other, then identify letters that share the same position.
Mapping the letters
The original word is D E F A U L T. Their positions are 1=D, 2=E, 3=F, 4=A, 5=U, 6=L, 7=T.
Sorting alphabetically
Arrange the letters of DEFAULT in English alphabetical order: A, D, E, F, L, T, U.
Comparing positions
Compare the positions: Original (1:D, 2:E, 3:F, 4:A, 5:U, 6:L, 7:T) vs Sorted (1:A, 2:D, 3:E, 4:F, 5:L, 6:T, 7:U). Checking each position: D!=A, E!=D, F!=E, A!=F, U!=L, L!=T, T!=U. No letters remain in the same position.
B: 2 is incorrect because no letter matches its index, C: 1 is incorrect because no letter matches its index, D: 3 is incorrect because no letter matches its index.
A is correct because when we compare the original word DEFAULT (D-E-F-A-U-L-T) with the alphabetically sorted version (A-D-E-F-L-T-U), there is no letter that retains its original position, resulting in a count of 0.
When dealing with word reordering, always list the original word vertically and then the transformed version next to it to avoid simple visual errors.
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