3. Greenland Company has two manufacturing departmentsMilling and Assembly. The company uses job-order costing system and computes a predetermined overhead rate for each department. The Milling department bases its rate on machine-hours, and the Assembly department bases its rate on direct labor-hours. At the beginning of the year, the company made the following estimates: Direct labor-hours Machine-hours Total fixed manufacturing overhead Variable manufacturing overhead per machine-hour Variable manufacturing overhead per labor-hour Department Milling Assembly 6,000 30,000 48,000 8,000 Tk. 350.000 Tk. 320,000 Tk. 2.40 Tk. 2.60 Required: i. Compute the predetermined overhead rate for each department. [03] ii. The job cost sheet for Job 420, which was started and completed during the year, showed the following: Department Milling Assembly Direct labor-hours 6 20 Machine-hours 80 8 Direct Materials Tk. 420 Tk. 370 Direct Labor Cost Tk. 130 Tk. 240 Using the predetermined overhead rate computed in (1) above, compute the total manufacturing cost assigned to Job 420. [03] iii. What would be the total manufacturing cost recorded for Job 420? If the job contained 60 units, what would be the unit product cost? [02]