check whether the following numbers are divisible by3?​

Question

check whether the following numbers are divisible by3?​

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Quinn 4 weeks 2021-08-22T23:57:11+00:00 1 Answer 0 views 0

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    2021-08-22T23:58:43+00:00

    Answer:

    221

    Given number = 221

    For a number to be divisible by 3 sum of digits must be divisible by 3.

    Sum of digits = 2 + 2 + 1 = 5

    Since 5 is not divisible by 3, therefore 221 not divisible by 3

    (ii) 543

    Given number = 543

    For a number to be divisible by 3 sum of digits must be divisible by 3.

    Sum of digits = 5 + 4 + 3 = 12

    Since 12 is divisible by 3, therefore 543 is divisible by 3.

    (iii) 28492

    Given number = 28492

    For a number to be divisible by 3 sum of digits must be divisible by 3.

    Sum of digits = 2 + 8 + 4 + 9 + 2 = 25

    Since 25 is not divisible by 3, therefore 28492 is not divisible by 3.

    (iv) 92349

    Given number = 92349

    For a number to be divisible by 3 sum of digits must be divisible by 3.

    Sum of digits = 0 + 2 + 3 + 4 + 9 = 27

    Since 27 is divisible by 3, therefore 92349 is divisible by 3.

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