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    Question

    If we increase each even digit by 1 and decrease each

    odd digit by 1 in the number "8951752864" and then arrange all the digits in ascending order, then which digit will be 4 th from the left end after the rearrangement?
    A 2 Correct Answer Incorrect Answer
    B 4 Correct Answer Incorrect Answer
    C 5 Correct Answer Incorrect Answer
    D 7 Correct Answer Incorrect Answer

    Solution

    8          9          5          1          7          5          2          8          6          4 9          8          4          0          6          4          3          9          7          5 After arranging all the number in ascending order, we get 0          3          4          4          5          6          7          8          9          9          4th digit from the left end is "4".

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