GATE Electronics and Communications (EC) 2020 Solved Papers

The following figure shows the data of students enrolled in 5 years ( 2014 to 2018 ) for two schools $\mathit{P}$ and $\mathit{Q}$. During this period, the ratio of the average number of the students enrolled in schools $\mathit{P}$ to the average of the difference of the number of students enrolled in schools $\mathit{P}$ and $\mathit{Q}$ is....................