A company expects to sell 12.000 units in April. Target-ending finished goods inventory is expected 5.000 units; beginning finished goods inventory is 2.000 units. Each unit of the final product requires 2 DL hours. Regular DL cost is $10 per hour. (Note: under normal conditions the company works 8 hours a day and it is assumed that the month April has 25 working days. However there will be an overtime work to complete the production during the month April. The company has 120 workers. Overtime premium is %50 higher than the regular hourly cost.) Required: if needed, how many hours does each worker overwork per day in April