Problem 8-66 (Algo) Operation Costing: Work-in-Process Inventory (LO 8-8) Washington, Inc., makes three models of motorized carts for vacation resorts, X-10, X-20, and X-40. Washington manufactures the carts in two assembly departments: Department A and Department B. All three models are processed initially in Department A, where all material is assembled. The X-10 model is then transferred to finished goods. After processing in Department A, the X-20 and X-40 models are transferred to Department B for final assembly, and then transferred to finished goods. There were no beginning work-in-process inventories on April 1. Data for April are shown in the following table. Ending work in process is 30 percent complete in Department A and 50 percent complete in Department B. Conversion costs are allocated based the number of equivalent units processed in each department. Units started Units completed in Department A Units completed in Department B Materials Conversion costs: Department A Department B Total conversion costs Total X-10 X-20 X-40 510 370 250 430 250 190 215 160 $384,000 $ 63,750 $120,250 $200,000 $308,100 50,938 $ 359,038 Required: a. What is the unit cost of each model transferred to finished goods in April? b. What is the balance of work-in-process inventory on April 30 for Department A? Department B