100 workers working 70 hours a week at 20/hour:
(100 x 40 x 20) + (100 x 30 x 30) = 170,000
200 workers working 35 hours a week at 20/hour:
200 x 35 x 20 = 140,000
(100 x 40 x 20) + (100 x 30 x 30) = 170,000
200 workers working 35 hours a week at 20/hour:
200 x 35 x 20 = 140,000