40 is what percent of 84? (What percent of 84 is 40?)

40 is what percent of 84?

The question here is "40 is what percent of 84?" which is the same as "What percent of 84 is 40?" This math word problem is asking "what percent" so we know that the answer should be a percent. Specifically, what percent (x) of 84 equals 40.

The problem is therefore x% of 84 = 40 which can be written as a function:

		x ∗ 84
		100

= 40

And when we solve the function above for x, we get 47.619. The answer to "40 is what percent of 84?" is therefore:

47.619%

How can we know the answer is correct? We know the answer is correct because 47.619 percent of 84 is 40.

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