Pls i wanna answer correct

1. When a chemical industry is working for 15 hours 30 min per day and that industry will be closed on every Friday and 30 days shut down for annual maintenance, find % attainment. (2) - The plant attainment or operating rate is the percentage of the available hours in a year that the plant operates, and is usually between 90 and 95%. %Attainment=8760hoursoperated100