Answer:
d. $11.11 per unit
Step-by-step explanation:
Plant wide overhead rate = Total manufacturing cotsts / Total direct labor hours
Plant wide overhead rate = ($2,530,000 + $900,000) / (168,000+110,000)
Plant wide overhead rate = $3,430,000 / 278,000
Plant wide overhead rate = $12.34 per DLH
Overhead cost per unit = Plant wide overhead rate * Direct hours per unit
Overhead cost per unit = $12.34 * 0.90
Overhead cost per unit = $11.11 per unit