Answer:
11,120 hours
Explanation:
In this question, we apply the labor efficiency variance which is shown below:
Labor Efficiency Variance = (Actual Hours × Standard Rate) - (Standard Hours × Standard Rate)
$4,200 Unfavorable = (Actual Hours x $3.75) - (10,000 hours x $3.75)
$4,200 Unfavorable = (Actual Hours x $3.75) - $37,500
$41,700 = (Actual Hours x $3.75)
So, the actual hours would be
= $41,700 ÷ $3.75
= 11,120 hours