90 is 5 percent of what number? (5% of what number is 90?)

90 is 5 percent of what number?

"90 is 5 percent of what number?" is a word problem where the answer is a number. Specifically, if you calculate 5 percent of number (x), you will get 90. Thus, you can illustrate the problem "90 is 5 percent of what number (x)" like this:

5% of x = 90

To calculate 5 percent of a number, we multiply the number by 5 and then divide by 100. Therefore, we can make the following function:

		5 ∗ x
		100

= 90

To solve for x, we first multiply both sides by 100 and then divide both sides by 5 to get the x = 1800. Therefore, the answer to 90 is 5 percent of what number? is:

1800

If we substitue "what number" in the question "90 is 5 percent of what number?" with 1800, we get this sentence: 90 is 5 percent of 1800. Since this statement is true, we know that our answer is correct.

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