Following is the information of piper company for the month of may:
units
work in process, may 1 (10% complete) 4,200
started in may 17,850
work in process, may 31 (20% complete) 3,150
materials and conversion are incurred uniformly throughout the process.
the equivalent units of production for conversion using the weighted average method would be

19,530 units

Explanation:

For computing the equivalent units for conversion costs , first we have to compute the transferred units which is shown below:

= Beginning work in process inventory units + units started - ending work in process inventory units

= 4,200 units + 17,850 units - 3,150

= 18,900 units

Now the equivalent units for conversion costs equal to

= Transferred units × percentage of completion + ending work in process inventory units × percentage of completion

= 18,900 units × 100% + 3,150 × 20%

= 18,900  units + 630 units

= 19,530 units

d. all of the above are true.