There are 8 workers at the Bessel Shirt Company. It takes each worker 12.5 minutes to make a shirt. How long would it take the eight workers to make a total of 1200 shirts?

Assuming that all 8 workers start and stop at the same time, 8 shirts are produced in 12.5 minutes......then 1 shirt is produced every (12.5 / 8) = 1.5625 min

Then 1200 of them would take 1200 x 1.5625 minutes = 1875 minutes = 31.25 hrs...