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3-digit number divisible by 3 but …

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3-digit number divisible by 3 but not by 9
  • 1 answers

Yogita Ingle 6 years, 1 month ago

345. Three hundred forty five.

3+4+5= 12.

12 is divisible by 3 (you would get 4), so 345 IS divisible by 3.

But 12 is not divisible by 9, because 12/9 is a decimal.

Thus, 345 is NOT divisible by 9.

But of course, 345 is not the only answer. Any number whose sum is divisible by 3 but not by 9 is the answer you are looking for.

You can use a calculator to check this trick.

Now to the second one, disable by 9, but not by 3.

Such a requirement is NOT possible. Any number divisible by 9 is automatically divisible by 3 because 9 is a multiple of 3.

http://mycbseguide.com/examin8/

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