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प्रश्न
If the sum of digits of a number is divisible by three, then the number is always divisible by ______.
विकल्प
2
3
6
9
उत्तर
If the sum of digits of a number is divisible by three, then the number is always divisible by 3.
Explanation:
We know that, if sum of digits of a number is divisible by three, then the number must be divisible by 3, i.e. the remainder obtained by dividing the number by 3 is same as the remainder obtained by dividing the sum of its digits by 3.
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