Suppose that production of 1 unit of mining requires 1/5 unit of mining, 215 unit of manufacturing, and 2/5 unit of communication. To produce 1
unit of manufacturing requires 315 unit of mining, 1/5 unit of manufacturing, and 1/5 unit of communication. To produce 1 unit of communication
requires 0 units of mining, 4/5 unit of manufacturing, and 175 unit of communication. Find the ratio of the three commodities in the closed model.
The ratio is
units of mining to every 8 units of manufacturing and
units of communication