\[\boxed{\mathbf{842\ (842)}\mathbf{.}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[A(2);\ \ \ B(3);\ \ C\left( \frac{1}{5} \right);\ \ D\left( 1\frac{2}{5} \right);\ \]
\[\text{\ E}\left( 3\frac{4}{5} \right).\]