Question

If 20% of a = b, then b% of 20 is same as?

Answer 1

`20\%\text{ of } a=b \Longleftrightarrow0.2a=b\\\\b\%\text{ of } 20 \Longleftrightarrow (b)/(100)\cdot20\\\\(b)/(100)\cdot20=(b)/(5)=(0.2a)/(5)=\boxed{\boxed{a}}`