Suppose that production of 1 unit of mining requires 3/5 unit of mining, 1/5 unit of manufacturing, and 1/5 unit of communication. To produce 1 unit of manufacturing requires 1/5 unit of mining, 2/5 unit of manufacturing, and 2/5 unit of communication. To produce 1 unit of communication requires 0 units of mining, 3/5 unit of manufacturing, and 2/5 unit of communication. Find the ratio of the three commodities in the closed model. *** The ratio is units of mining to every 6 units of manufacturing and units of communication.

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