Answer:
Actual Quantity= 60,000 hours
Step-by-step explanation:
First, we need to calculate the direct labor rate variance and the standards direct labor hours:
Total Labor Cost Variance= efficiency variance + rate variance
-12,000 = 6,000 + rate variance
-18,000= rate variance
Variable manufacturing overhead rate variance= (standard rate - actual rate)* actual quantity
-18,000= (11.7 - 12)*actual quantity
-18,000 = -0.3*actual quantity
60,000= actual quantity