In a college of 300 students, every student reads 5 newspaper and every newspaper is read by 60 students. The number of newspaper is

Solution:

Let number of newspaper be x, If every student reads one newspaper, the number of students would be 60x
Since, every student reads 5 newspapers. 

$\begin{array}{l}\therefore \text{ Number of students }=\frac{\mathrm{x}\times 60}{5}=300\\ \Rightarrow \mathrm{x}=25\end{array}$