Multiple Choice Questions on If X 393 is divisible by 11 then find the smallest natural number to be replaced by X ........ for RRB(NTPC) Exam Preparation

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Multiple Choice Questions

If X 393 is divisible by 11 then find the smallest natural number to be replaced by X ........

Quantitative Aptitude (RRB NTPC) Number System
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    If X 393 is divisible by 11 then find the smallest natural number to be replaced by X.

    5

    Incorrect Answer

    6

    Incorrect Answer

    7

    Incorrect Answer

    8

    Correct Answer
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    Explanation:
    For X393 to be divisible by 11, the difference between the sum of its odd and even digits must be 0 or divisible by 11.
    X + 9 – (3+3) = X + 3
    Minimum value of X + 3 = 11
    X = 8

    By: Barka Mirza
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