15 is what percent of 121? (What percent of 121 is 15?)

15 is what percent of 121?

The question here is "15 is what percent of 121?" which is the same as "What percent of 121 is 15?" This math word problem is asking "what percent" so we know that the answer should be a percent. Specifically, what percent (x) of 121 equals 15.

The problem is therefore x% of 121 = 15 which can be written as a function:

		x ∗ 121
		100

= 15

And when we solve the function above for x, we get 12.397. The answer to "15 is what percent of 121?" is therefore:

12.397%

How can we know the answer is correct? We know the answer is correct because 12.397 percent of 121 is 15.

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