Please with the steps and the solution equation

A stop-watch time study made in a woodworking shop of a lathe operation produced the following results:. Observations (minutes/cycle) job 1 2 3 4 5 1 .45 .43 .40 .44 .39 2 .30 .31 .33 .29 .30 3 .80 .83 .80 .81 .82 Elements 1 and 3 are performed by the operator, element 2 is completely performed by the machine. Performance rating for the element 1 is 90% and for element 3 it is 110%. If the shop allows worker to have 15minute of the daily working hour for prayer, 25minutes of the daily working hour for personal time and 15minutes of the daily working hour moorning delay. a) Calculate the standard time for the operation. b) Calculate the number of unit produce in three shift of six hours