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33 and 39

The way to do this is to see which odd numbers between 30 and 40 have digits that add up to a multiple of 3 since this is the test to see if a number is divisible by 3.
So 33 has digits that add to 6 since 3+3=6 and 33 is odd
Also, 39 has digits that add up to 12 since 3+=12 and 39 is odd.


36 has digits that add to 9, but it is even so we discard it.

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14y ago
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11y ago

30, 33, 36, 39, 42, 45, 48

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9y ago

I don't know but 45 is one of them

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6y ago

They are 42, 45 and 48.

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8y ago

45

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13y ago

4o/5o ands

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6y ago

42, 45, 48

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Q: What are the multiples of 3 between 30 and 50?
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