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    If 1 is added to each odd digit and 2 is subtracted from each even digit in the number 3154872, what will be the difference between the digits wh
    Question

    If 1 is added to each odd digit and 2 is subtracted from each even digit in the number 3154872, what will be the difference between the digits which are second from the left and second from the right in the new number thus formed?​

    A.

    5

    B.

    7

    C.

    4

    D.

    6

    Correct option is D

    ​Original: 3154872
    Odd digits → +1
    Even digits → −2
    ​New (odd +1, even −2): 4262680
    2nd from left = 2, 2nd from right = 8
    Difference = 8 − 2 = 6 ​
    Thus, correct option is (d).

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