Seven jobs will be in the shop next week. The demand in units for each job and the production rates of the standard operator in pieces per standard operator hour for each type of job are given as follows:

Job A B C D E F G Demand 600 1000 500 50 2000 20 800 Production rate 60 20 25 10 40 2 40 What production capacity in standard operator hours is required to complete all of these jobs?