Calculation:

Let the total number of students are x. Therefore,

\(\displaystyle{\frac{{{36}}}{{{100}}}}{x}={900}\)

\(\displaystyle{x}={\frac{{{900}}}{{{36}}}}\times{100}\)

\(\displaystyle{x}={2500}\) students

Let the total number of students are x. Therefore,

\(\displaystyle{\frac{{{36}}}{{{100}}}}{x}={900}\)

\(\displaystyle{x}={\frac{{{900}}}{{{36}}}}\times{100}\)

\(\displaystyle{x}={2500}\) students