Question

20 is 85% of what number

Answer 1

$85\%\ \ \ of\ \ \ number\ \ x \ \ \ is\ \ \ 20\\\\ 85\%=\frac{85}{100}=0,85\\\\ 85\%*x=20\\\\ 0,85*x=20\ \ \ \ |divide\ by\ 0,85\\\\ x=23,5\\\\ 20\ is\ 85\%\ of\ number\ 23,5.$

Answer 2

1,176470588235294--------5%
23,52941176470588--------100%
but if i were you were approximate it and get 23,53