An economy can produce good 1 using labor and capital and good 2 using labor and land. The total supply of labor is 100 units. Given the supply of capital, the outputs of the two goods depend on labor input as follows:
Labor Input to Good 1Output of Good 1Labor Input to Good 2Output of Good 2
0 0.0 0 0.0
10 25.1 10 39.8
20 38.1 20 52.5
30 48.6 30 61.8
40 57.7 40 69.3
50 66.0 50 75.8
60 73.6 60 81.5
70 80.7 70 86.7
80 87.4 80 91.4
90 93.9 90 95.9
100 100 100 100
At what labor input for good 1 does the output equal 73.6?
a. 60
b. 70
c. 80
d. 90