1. Heshima Ltd. has three factories F₁, F₂ and F₃ which manufacture computers. The company markets the computers through four outlets D₁, D₂, D₃ and D₄. The following table shows the inventories (in thousands of units) of computers in the three factories:

Factory	F1	F2	F3
Inventory	14	27	14

The company is required to supply the four outlets. The requirement of the outlets (in thousands units) is as follows:

Outlet	D1	D2	D3	D4
Demand	15	19	11	10

The following table shows the cost (in shilling) of transporting one computer from the factories to the outlets

Factory	Outlet
	D1	D2	D3	D4
F1	9	7	10	8
F2	8	11	9	11
F3	13	10	12	10

Required: The minimum total transportation cost using Vogels Approximation Method (VAM) [10 marks]