13)

In a passport Office, two consecutive tasks must be completed. The first task takes 33 minutes and the second takes 18 minutes. If the daily demand is estimated to be 77 passports and the office is opened for 8 hours per day (include 60 minute lunch break and 60 minutes coffee break). What should be the minimum number of work stations? Select one: O a. None of the answers O b. 9 O c. 10.91 O d. 12 O e. 11