Answer:
Total equivalent units of material = 900
Step-by-step explanation:
Equivalent units are notional whole units which represent incomplete works are used to allocate cost to work in progress and completed units
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.
Equivalent unit = Degree of completion × units
Item units Equivalent units
Completed units 600 100% × 600 = 600
Closing inventory 300 100%× 300 = 300
Total equivalent units of material 900
Note simply because materials are added at the beginning of the process, it is assumed that all the quantity required would have been added. Hence the degree of completion for materials is 100% .