Answer :
Let the value be x
then
[tex]\begin{gathered} 80\text{percent of x = 90} \\ \Rightarrow\frac{80}{100}\times x=90 \\ \Rightarrow x=\frac{90\times100}{80}=112.5 \end{gathered}[/tex]Let the value be x
then
[tex]\begin{gathered} 80\text{percent of x = 90} \\ \Rightarrow\frac{80}{100}\times x=90 \\ \Rightarrow x=\frac{90\times100}{80}=112.5 \end{gathered}[/tex]