Sku A is kept in a distant region of bulk storage and so it takes 4 times longer to restock it to carton flow rack than it does to restock sku B. They are expected to sell the same volume (cubic meters) of product during the next planning period. Assuming there is one unit of space to be shared by skus A and B in the forward pick area, use the fluid model to tell how much space each should get so that the cost of re-stocking these two skus is minimized?