Answer:
Cost per equivalent unit of materials = $3.16
Step-by-step explanation:
Under the weighted average method of valuation, to account for completed units, it is assumed that the entire degree of work required is done in the period under consideration. So there is no separation of the completed units into opening inventory and fully worked.
Cost per equivalent unit = cost / total equivalent units
Total units completed and transferred out= 18,000 + 90000= 108,000
Items Unit Equivalent unit
Completed units 108,000 100% × 108,000 = 108,000
Closing inventory 30,000 100% × 30,000 = 30,000
Total equivalent unit of material 138,000
Cost per equivalent unit = Total cost/Total equivalent unit
= (107,000 + 329,000) /138,000 units
= $3.16