Answer:
Total overhead = $375,000
Step-by-step explanation:
60,000 direct labor hours
$300,000 variable overhead
variable overhead per direct labor = $300,000 / 60,000 = $5 per hour
if the number of direct labor hours is reduced to 57,000, then variable overhead = 57,000 x $5 = $285,000
total overhead = variable overhead + fixed overhead = $285,000 + $90,000 = $375,000