A manufacturing company has two factories F₁ and F₂ producing a certain commodity that is required at three retail outlets M₁, M₂ and M₃. Once produced, the commodity is stored at one of the ve company warehouses, W₁;W₂;W₃;W₄;W₅ from where it is distributed to thevarious retail outlets. It is not feasible to move the commodity from a warehouse to a factory, nor is it feasible to move the commodity from a retail outlet to a warehouse. The tables below give the maximum weekly amount of the commodity that can be moved from factory F_i to warehouse W_j and from warehouse W_j to retail outlet Mk. Maximum weekly movement of the commodity between warehouses is indicated in the network shown below. Each factory F₁ and F₂ has a weekly production capacity of 60 units. Using an appropriate network, determine the maximum amount of the commodity that can be supplied to the markets.