20 The Canadian Parks Commission controls two tracts of land. Tract 1 consists of 300 acres and tract 2, 100 acres.

Each acre of tract 1 can be used for spruce trees or hunting, or both. Each acre of tract 2 can be used for spruce trees or camping, or both. The capital (in hundreds of dollars) and labor (in worker-days) required to maintain one acre of each tract, and the profit (in thousands of dollars) per acre for each possible use of land are given in Table 55. Capital of

$150,000 and 200 man-days of labor are available. How should the land be allocated to various uses to maximize profit received from the two tracts?