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  1. Find the number which is completely divisible by 45.

  2. A.
    306990
    B.
    331145
    C.
    256987
    D.
    181660

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    Answer : Option A

    Explanation :


    A number, which is divisible by 3, 5, and 9, is also divisible by 45.

    A number is divisible by 3 if the sum of its entire digits is divisible by 3.
    A number is divisible by 9 if the sum of its entire digits is divisible by 9.
    The number which ends with 0 or 5 is divisible by 5.

    The number 306990 fulfils all the requirements, so the answer is 306990.


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