Answer: d. $93.75
Step-by-step explanation:
First find the total cost of Department X:
= Direct cost + Maintenance cost + Personnel costs
Maintenance cost for Dep. X:
= Standard hours for Maintenance / Total hours * Maintenance costs
= 1,200 / (1,200 + 600) * 90,000
= $60,000
Personnel costs:
= Number of employees in X / Total employees * Personnel costs
= 75 / (75 + 75) * 13,500
= $6,750
Total cost:
= 27,000 + 60,000 + 6,750
= $93,750
Predetermined overhead rates:
= Cost / Direct labor hours
= 93,750 / 1,000 hours
= $93.75