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Hope that all can answer the question. It's an IQ!

How can one make 30 using 3 only three times?

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12
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Well by doing this way :

33 - 3 = 30

And another solution :

3! * 3! - 3! = 30

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In addition to Saeidryl's answer, you can also do

$3^3 + 3 = 30$. This may be "more" correct depending on whether or not you allow the concatenation of 3's.

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