20 is what percent of 391? (What percent of 391 is 20?)

20 is what percent of 391?

The question here is "20 is what percent of 391?" which is the same as "What percent of 391 is 20?" This math word problem is asking "what percent" so we know that the answer should be a percent. Specifically, what percent (x) of 391 equals 20.

The problem is therefore x% of 391 = 20 which can be written as a function:

		x ∗ 391
		100

= 20

And when we solve the function above for x, we get 5.115. The answer to "20 is what percent of 391?" is therefore:

5.115%

How can we know the answer is correct? We know the answer is correct because 5.115 percent of 391 is 20.

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