A plant export company makes two products for export, A and B. Both products go through a four stage process: seed, sprout, small plant, adult plant. The two products are produced in batches of 100 items and the time taken in hours, for each batch to go through each stage is shown in the table. Determine the optimal solution for this problem? Stage Product A Product B Hours available seed 12 18 240 sprout 30 45 450 small plant 20 60 480 adult plant 40 30 480 Profit contribution per batch of product A is $4 and for product B is $5