Question $3-10$ marks

At Our Company, materials are entered at the beginning of each process using Process Costing, Weighted Average Method. Work in process inventories, with the percentage of work done on conversion, and production data for its Painting Department in selected months are as follows:

Required:

$($a$)$ Compute the physical units for July $(3$ marks$)$

$($b$)$ Compute the equivalent units of production for materials and conversion costs for September $(7$ marks$)$