The Massive Mining Co refines iron ore for export markets. The following data relates to the companys mine for the month of April: 25,000 units of work in process existed at 1st April, the costs for which were: Direct materials 18,500 Conversion 36,750 35,000 units commenced production during April. The costs incurred during the month for refining were: Direct material 300,000 Conversion 230,000 The closing work in progress at 30th April was 15000 units. Materials were added at the beginning of the refining process and conversion was 1/3rd complete at month end. a. Calculate the cost per equivalent unit for the month of April using the weighted average method of process costing. b. Calculate the value of work in progress and the value of completed stock transferred to finished goods during the month