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    If 2 is added to each even digit and 1 is subtracted from each odd digit in the number 4739215, what will be the difference between the greatest and s
    Question

    If 2 is added to each even digit and 1 is subtracted from each odd digit in the number 4739215, what will be the difference between the greatest and smallest digits in the new number thus formed?

    A.

    8

    B.

    6

    C.

    2

    D.

    4

    Correct option is A

    Given:
    The number is 4739215.

    Logic:
    Add 2 to each even digit.
    Subtract 1 from each odd digit.

    Explanation (step by step):
    4 (even): Add 2 → 4 + 2 = 6
    7 (odd): Subtract 1 → 7 - 1 = 6
    3 (odd): Subtract 1 → 3 - 1 = 2
    9 (odd): Subtract 1 → 9 - 1 = 8
    2 (even): Add 2 → 2 + 2 = 4
    1 (odd): Subtract 1 → 1 - 1 = 0
    5 (odd): Subtract 1 → 5 - 1 = 4

    So, the new number formed is: 6628404.

    Now, find the greatest and smallest digits:
    The greatest digit is 8.
    The smallest digit is 0.

    Difference:
    8 - 0 = 8

    Final Answer:
    8

    Final Correct Option:
    (A) 8

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