Question

81 is 18% of what number?

Answer 1

81 is 18% of 450.

18 81
-------- = --------
100 x

I used the cross multiplying method to figure out the next step.

18x = 100(81)

18x = 8100
------ ----------
18 18

x = 450

Answer 2

81 is 18% of 450 because if you divide 81 by 450 it would equal 0.18