This page describes the graphical method to solve a linear program. The formulation is as follows.
$$\begin{alignat}{2} \max &\quad Z = 200W + 100B\\ \text{s.t.} &\quad 1W + 0.8B &&\leq 4000\\ &\quad 0.004W + 0.001B &&\leq 10\\ &\quad W, B &&\geq 0\end{alignat}$$
The solution given is:
Co-ordinates of the optimum point are approximately 1850 W and 2750 B (1850, 2750).
What would be an easy way to calculate the optimal solution in addition to an estimate seen from graph (rather than the simplex method)? Thank you.