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8th Class Mathematics Playing with Numbers Question Bank Playing with Numbers

  • question_answer
    X is the sum of the digits of a 3 digit number subtracted from the number. Which of the following is true?

    A)  X is divisible by 5.

    B)  X is not divisible by 6.

    C)  X is divisible by 9.

    D)  X is not divisible by 9.

    Correct Answer: C

    Solution :

    Consider an example 452 \[4+5+2=11\]is the sum of the digits. \[X=452-11=441\] \[4+4+1=9\]is divisible by 9. So, option (C) is correct.


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