Answer:
21,500
Explanation:
Given that,
Labor efficiency variance = $8,000 F
Standard Rate = $8 per hour
Standards for direct labor for a product = 2.5 hours
Labor efficiency variance = (Standard Hour for actual output - Actual Hour) × Standard Rate
$8,000 = [(9,000 × 2.5) - Actual Hour] × $8 per hour
1,000 = 22,500 - Actual Hour
Actual hour = 22,500 - 1,000
= 21,500
Therefore, the actual number of hours worked during the past period was 21,500.