Each of the digits in the number 4738165 is arranged in ascending order from left to right. The position(s) of how many digits will remain unchanged as compared to that in the original number?
None
The original number is 4738165, with digits 4, 7, 3, 8, 1, 6, 5 at positions 1 to 7.
Arranging the digits in ascending order gives 1, 3, 4, 5, 6, 7, 8.
Comparing position by position, none of the seven digits occupy the same position in both the original and the rearranged number.
Hence, no digit's position remains unchanged.
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Important Questions from Number Arrangement
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Refer to the following series and answer the question (all numbers are single digit numbers only).
(Left) 1 2 6 5 6 8 1 5 8 6 9 8 3 3 5 8 9 4 7 8 (Right)
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