This is an example Linear programming model of ODMO program.
$$
\begin{align}
\underset{x,y}{\max} & \quad a x + b y \\
\text{s.t.} & \quad 0 \leq x \leq c_1, 0 \leq y \leq c_2 \\
& \quad d_1 x + d_2 y \leq d_3 \\
& \quad \frac{x}{y} \geq e
\end{align}
$$
[Set] appropriate values below to describe your problem.