Mazoon Leather Company decided to use a multiple predetermined overhead rate to apply manufacturing overhead to jobs. The predetermined overhead rate chosen is labor hours for Primary Treatment Department and machine-hours for Secondary Treatment Department. The accounting records shows the following estimates made at the beginning of the year: Primary Treatment $360,000 2,000 6,000 Secondary Treatment $ 240,000 15,000 Manufacturing overhead cost Machine hours 9,000 Direct labor-hours $ 60,000 $ 40,000 Direct labor cost What predetermined overhead rates would be used in Mazoon Leather for Primary Treatment Department and Secondary Treatment Department, respectively? a $60 and $16 b. $60 and 600% oc None of the given answer d. 600% and $16 de $6 and 600%