Given that, Income $\left(\mathit{y}\right)=5000$
Marginal Propensity to save $\left(\mathrm{}\mathit{s}\right)=0.2$
Therefore, marginal propensity to consume


$=1-0.2=0.8$
$\therefore \mathit{Y}=\mathit{C}+\mathit{b}\mathit{y}+\mathit{I}$
$\Rightarrow 5000=\mathit{C}+0.8\times 5000+800$
$\Rightarrow 5000=\mathit{C}+4000+800$
$\Rightarrow 5000=\mathit{C}+4800$
$\Rightarrow 5000-4800=\mathit{C}$
$\Rightarrow 200=\mathit{C}$
$\Rightarrow$ Autonomous Consumption $=200$